Edward Conard

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  • “…a fresh argument for the productive value of inequality.” - David Autor, Professor of Economics, Massachusetts Institute of Technology
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  • “Unintended Consequences is full of substance, it is one of the must-read books of the year, and once I finish it I will be giving it a second read through right away.” - Tyler Cowen, Professor, George Mason University
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  • “…reminds us that inequality sends a signal of what society lacks most, in America’s case, entrepreneurship and risk taking.” - Lawrence Lindsey, CEO, The Lindsey Group, former Director of the National Economic Council
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To Strike a Climate Deal, Poor Nations Say They Need Trillions From Rich Ones

AI Summary. Developed countries have fallen short of their climate finance commitments to poorer nations, providing about $80bn in one year against a $100bn annual target, with only about $14bn of that coming from private investors. Developing countries say they need trillions of dollars annually for clean energy and climate adaptation, and want grants rather than debt-creating loans.

Matthew Dalton Wall Street Journal
Date Posted:
October 20, 2021
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Developed countries have struggled to meet climate finance commitments to the developing world, with only $80bn provided in 2019, falling short of the $100bn annual target.

Are rich countries meeting poorer nations' demands for climate financing?

Core argument: Developed countries provided $80bn in climate finance in 2019, short of the $100bn annual target set for 2020–2025, after struggling to meet their commitments from 2013 to 2019.

From 2013 to 2019, developed countries have struggled to meet their climate finance commitments to the developing world, with only $80bn provided in 2019, falling short of the $100bn annual target set for 2020-2025. South Africa's demand for $750bn annually highlights the growing financial needs of poorer nations to transition from fossil fuels and adapt to climate impacts. Bangladesh, Kenya, and India alone require trillions for climate resilience and clean energy projects. Despite pledges, private sector contributions remain low, with only $14bn from private investors in 2019. The reliance on private investment is challenged by perceived risks and the non-revenue nature of many adaptation projects. As emissions in developing countries are projected to rise, the urgency for increased funding is critical to prevent catastrophic climate change. Wealthy nations are urged to provide more grants rather than loans to avoid burdening poorer countries with debt, while also ensuring that funds are managed effectively.

Takeaways by Macro Roundup® AI

  1. Developed countries provided $80bn in climate finance in 2019, short of the $100bn annual target set for 2020–2025, after struggling to meet their commitments from 2013 to 2019.
  2. South Africa is demanding $750bn annually in climate finance, while Bangladesh, Kenya, and India alone require trillions for climate resilience and clean energy projects.
  3. Private investors contributed only $14bn of climate finance in 2019, and reliance on private capital is challenged by perceived risks and the non-revenue nature of many adaptation projects.

"...At a July global climate gathering in London, South African environment minister Barbara Creecy presented the world’s wealthiest countries with a bill: more than $750 billion annually to pay for poorer nations to shift away from fossil fuels and protect themselves from global warming....Without poorer countries on board, the world stands little chance of preventing catastrophic climate change, say many climate scientists. Emissions in the U.S. and Europe are falling as both regions push to adopt renewable energy and phase out coal-fired electricity. But emissions in the developing world are expected to rise sharply in the coming decades as billions rise out of poverty—unless those economies can shift onto a lower-carbon path....Bangladesh says it needs cyclone-resistant housing. Kenya wants its countryside dotted with solar farms instead of coal or natural gas-fired plants. India says its climate-change plan alone will cost more than $2.5 trillion through 2030...."

Matthew Dalton, "To Strike a Climate Deal, Poor Nations Say They Need Trillions From Rich Ones,"Wall Street Journal, October 18, 2021, https://www.wsj.com/articles/to-strike-a-climate-deal-poor-nations-say-they-need-trillions-from-rich-ones-11634568010

To Strike a Climate Deal, Poor Nations Say They Need Trillions From Rich Ones

At a July global climate gathering in London, South African environment minister Barbara Creecy presented the world’s wealthiest countries with a bill: more than $750 billion annually to pay for poorer nations to shift away from fossil fuels and protect themselves from global warming.

The number was met with silence from U.S. Climate Envoy John Kerry, according to Zaheer Fakir, an adviser to Ms. Creecy. Other Western officials said they weren’t ready to discuss such a huge sum.

For decades, Western countries responsible for the bulk of greenhouse-gas emissions have pledged to pay to bring poorer nations along with them in what is expected to be a very expensive global energy transition. But they have yet to fully deliver on that promise. Now the price of the developing world’s cooperation is going up.

At the end of the month, negotiators from nearly every country will meet in Glasgow, Scotland, for a two-week climate summit, the first major gathering since governments signed the Paris accord in 2015. The goal is to strike a deal to keep the climate targets of the Paris agreement within reach.

Without poorer countries on board, the world stands little chance of preventing catastrophic climate change, say many climate scientists. Emissions in the U.S. and Europe are falling as both regions push to adopt renewable energy and phase out coal-fired electricity. But emissions in the developing world are expected to rise sharply in the coming decades as billions rise out of poverty—unless those economies can shift onto a lower-carbon path.

Before signing on, poorer countries are demanding a big increase in funding from the developed world to adopt cleaner technologies and adapt to the effects of climate change such as rising sea levels and more powerful storms.

Bangladesh says it needs cyclone-resistant housing. Kenya wants its countryside dotted with solar farms instead of coal or natural gas-fired plants. India says its climate-change plan alone will cost more than $2.5 trillion through 2030.

“We cannot be talking about ambition on the one hand, and yet you show no ambition on finance,” said Mr. Fakir who is coordinating climate finance policies for the Group of 77, a coalition of developing nations.

Developed nations say it is unrealistic to put them on the hook for such a large sum without also getting middle-income countries—China in particular—to provide funds. In Paris in 2015, the U.S., Europe and a few other wealthy nations committed to funding poorer countries to the tune of $100 billion a year from 2020 through 2025. They have so far fallen short.

To Strike a Climate Deal, Poor Nations Say They Need Trillions From Rich Ones: Extended Excerpt Image 1


Developing-world negotiators say the money isn’t financial aid. Rather, they say wealthy countries have a responsibility to pay under the U.N. climate treaties because most of the Earth’s warming since the industrial era is the result of emissions from the rich world. Moreover, poor nations now face the task of raising living standards without burning fossil fuels unchecked as the U.S. and other rich nations did for almost two centuries.

“If you’re going to ask a much poorer country to forgo that option, then there is a moral claim that they need support to go on a lower emissions development pathway,” said Joe Thwaites, a climate-finance expert at the World Resources Institute, an environmental think tank.

Even developed countries are struggling with the transition to renewables. A surge in demand for power from nations recovering from the pandemic has forced governments to lean on fossil fuels; though investment in renewables has increased, it accounts for only about a quarter of the world’s power.

Western officials say the Glasgow negotiations need to focus first on how to raise enough money to meet the Paris goal. Then they are planning to begin talks on a finance goal for after 2025. That sum is expected to be too large to pay from the government budgets of rich nations alone, officials say. Instead they are counting on private investors to pick up most of the bill.

“There isn’t enough official development funds in the system to close the gap of climate finance,” said Gustavo Alberto Fonseca, director of programs at the U.N.’s Global Environment Facility, which funds climate infrastructure in the developing world. “There has to be a market-based solution.”

Developing nations want a big portion of the money to come as government grants, not loans from private investors that would saddle them with debt. They’re demanding control over how the money is spent, wary of dictates from wealthy governments and financiers in the U.S. and Europe.

The developing world also questions whether the U.S. is committed to delivering its portion of the funds over the long haul. The Biden administration has pledged to double climate funding to developing countries to $11.4 billion annually by 2024, which would make the U.S. by far the biggest single benefactor. President Donald Trump reneged on previous promises the Obama administration made to finance the Green Climate Fund, the U.N.’s main vehicle for delivering money to the developing world, saying the fund “was costing the United States a vast fortune.”

The Organization for Economic Cooperation and Development, a club of wealthy countries, says the developed world had accounted for $80 billion in climate financing to poor countries in 2019, the most recent year for which data are available. It is unlikely that they reached the $100 billion target in 2020, officials say.

Private-sector investors haven’t piled into investment projects as expected. Only $14 billion of the $80 billion came from the private sector, according to the OECD. That’s because pension funds, insurance companies and other major institutional investors are uncomfortable funding renewable-energy projects in countries they perceive to be higher risk.

Officials say private investors are ill-suited for underwriting other pressing needs: projects that help developing nations adapt to the effects of climate change. Seawalls that protect against rising sea levels and programs to teach farmers to grow drought-resistant crops don’t generate revenue to compensate investors, unlike a solar farm that sells electricity onto the grid.

To entice private investors, wealthy governments are putting taxpayer money on the line, accepting first losses on projects that don’t work out. BlackRock Inc, the giant investment manager, has launched a $250 million facility alongside the development agencies of France, Germany and other countries to provide climate financing to the developing world.

“If we just had institutional capital alone, we might be much more constrained in where we could go,” said Jim Barry, BlackRock’s chief investment officer for alternative investments.

Climate funding is channeled through more than two dozen different agencies, each with their own rules and requirements. Some of the requirements—such as one demonstrating that a climate project advances gender equality—reflect the prerogatives of wealthy nations. Others are designed to give developing countries more say over how the funds are spent.

“Sometimes I argue it’s not worth pursuing some little amount of money, because the energy, time and resources for developing a proposal are not worth it,” said Mizan Khan, a climate negotiator for Bangladesh, one of the countries most vulnerable to the effects of climate change.

The Green Climate Fund is the cornerstone of the U.N.’s strategy for channeling funds to the developing world. Launched in 2015, the fund can dole out grants or use its money to enlist private investors. By taking on the riskiest slice of financing on climate-change projects, the fund aims to leverage huge sums of private capital with a relatively small contribution of its own funds.

The GCF helped launch renewable energy in Egypt by financing a huge solar farm in Benban, 400 miles south of Cairo, and wind turbines on the Gulf of Suez. The GCF gave a $15 million grant for technical consulting for the Egyptian electricity sector and lent $150 million for the project in 2017, when Egypt’s political turmoil meant foreign capital was only available at high interest rates. Other investors put $850 million into the project. Since then, investors have flooded into Egyptian solar projects, driving down the price of solar power sharply.

Efforts to scale up the GCF’s financial firepower, however, have been beset with disputes between wealthy and developing countries as well as frequent leadership changes.

“The work environment in the fund is very adversarial,” said Wael Aboulmagd, a senior Egyptian diplomat who is on the fund’s board.

At a July 2018 meeting, board members spent days arguing over new policies sought by wealthy countries, such as an update to the fund’s stance on gender equality and allowing the board to make decisions without unanimity. Developing-world officials feared rich nations, which were due to pledge more money, were using the moment as leverage to impose their priorities.

The executive director unexpectedly resigned during the three-day meeting, citing personal reasons. By the end, the bickering left no time for the board to approve funding proposals.

“After this meeting, I cannot see how I can come home and defend why we should put more money into this fund,” said Lars Roth, a Swedish representative on the board. “We haven’t made any decision of significance. This has to end.”

One project that had already been approved, the Global Energy Efficiency and Renewable Energy Fund Next, aimed to use $250 million in capital from the GCF to raise another $500 million from private-sector investors. The money was to be seeded into an array of subsidiary funds with more leverage, bringing the project’s total investment firepower to $30 billion, to pay for renewable energy and energy-efficiency projects in dozens of countries across the developing world, from Belize to Uganda. It was the Green Climate Fund’s most ambitious attempt yet to amplify its money with private-sector finance.

In June 2020 the project was canceled. Under GCF rules, sponsors had asked developing-world governments to preapprove a series of hypothetical projects that could be used to raise money from private investors. That provoked resistance from India, Rwanda and others that wanted more control over specific projects in their territories.

“I’ve sweated blood and tears on that,” said an official involved in the project. “We spent an incredible amount of time discussing how we could sue each other if something went wrong.”

Yannick Glemarec, the GCF’s executive director, said the project was a great idea but beyond the fund’s capacity when it was proposed. “We had to start everything from scratch,” he said, adding that cooperation between developed and developing nations “is a challenge at times, but I wouldn’t swap the legitimacy this gives GCF for any other model.”

As Glasgow approaches, wealthy countries are drafting a new plan to hit the Paris agreement’s finance target and to make up for the fact they have likely fallen short in 2020.

“We should be focused on delivering the $100 billion before we start talking about huge numbers,” said an adviser to French President Emmanuel Macron.

The developing world disagrees. When Ms. Creecy, the South African minister, demanded $750 billion in annual climate finance, she wanted to start a discussion that poorer nations felt developed countries were avoiding, said Mr. Fakir.

The figure is based on a formula the Global Environment Facility, a U.N. fund, has used to finance projects in the developing world for decades. The facility typically requires recipient countries and private investors to put up $12 for every dollar provided by the fund. So South African officials simply took the amount of public funds provided directly by developed countries in 2019—around $62 billion, according to the OECD—and multiplied by a factor of 12. Then they rounded up.

In September, African nations used the South African methodology to settle on an even bigger finance demand to be presented in Glasgow: $1.3 trillion annually by 2030.

Alok Sharma, the U.K. climate minister who is leading Glasgow negotiations, said he is focused on pressuring wealthy countries to deliver on the $100 billion target and to provide more money as grants rather than loans. “Every nation has taken a huge hit to their public finances because of Covid,” he said. “If you’re going to ladle more debt on developing nations, that’s not going to be particularly helpful.”

  • Global Warming
Previous articleOctober 20, 2021Nobody Really Knows How the Economy Works. A Fed Paper Is the Latest SignA Fed paper by Jeremy Rudd questions the significance of inflation expectations, challenging long-held beliefs in macroeconomics. @Neil_IrwinNext articleOctober 20, 2021Reconciliation Bill Tax Proposal In Context@JasonFurman Reconciliation bill is a small change in the overall level of taxation but a large change in composition, raising revenue by 0.5% of GDP, shifting tax burden to high-income earners & increasing corporate taxes to pre-TCJA levels.
Showing 20 database articles primarily about Global Warming

Three Tough Truths About Climate

AI Summary. The International Energy Agency's projection for annual carbon dioxide emissions in 2040 has fallen from 50bn tons to 30bn tons, though the world is expected to fall far short of the 1.5°C Paris goal, with warming likely between 2°C and 3°C by 2100. Global energy demand is projected to more than double by 2050.

Bill Gates GatesNotes
Date Posted:
October 28, 2025
Is Database:
Database
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Noting that over the past decade global CO2 emissions projected by the IEA have fallen by more than 40%, Bill Gates argues innovation will likely “give us the tools we need to meet the growing demand for energy without increasing carbon emissions.”

Have emissions forecasts improved even as climate goals go unmet?

Core argument: The International Energy Agency has cut its 2040 global carbon dioxide emissions forecast from 50 billion tons, projected a decade ago, to 30 billion tons, and projects 2050 emissions will be lower still.

Ten years ago, the International Energy Agency predicted that by 2040, the world would be emitting 50 billion tons of carbon dioxide every year. Now, just a decade later, the IEA’s forecast has dropped to 30 billion, and it’s projecting that 2050 emissions will be even lower. Even if the world takes only moderate action to curb climate change, the current consensus is that by 2100 the Earth’s average temperature will probably be between 2°C and 3°C higher than it was in 1850. That’s well above the 1.5°C goal that countries committed to at the Paris COP in 2015. In fact, between now and 2040, we are going to fall far short of the world’s climate goals. One reason is that the world’s demand for energy is going up—more than doubling by 2050. Although wind and solar have gotten cheaper and better, we don’t yet have all the tools we need to meet the growing demand for energy without increasing carbon emissions. But we will have the tools we need if we focus on innovation. With the right investments and policies in place, over the next ten years we will have new affordable zero-carbon technologies ready to roll out at scale. Add in the impact of the tools we already have, and by the middle of this century emissions will be lower and the gap between poor countries and rich countries will be greatly reduced.

Takeaways by Macro Roundup® AI

  1. The International Energy Agency has cut its 2040 global carbon dioxide emissions forecast from 50 billion tons, projected a decade ago, to 30 billion tons, and projects 2050 emissions will be lower still.
  2. The current consensus holds that even with moderate climate action, Earth's average temperature in 2100 will probably be 2–3°C above 1850 levels, well above the 1.5°C goal countries committed to at the 2015 Paris COP.
  3. Global energy demand is set to more than double by 2050, and despite wind and solar becoming cheaper and better, the tools to meet that demand without increasing carbon emissions do not yet all exist.

Related Articles:

  • The Most Amazing Climate Policy Figure — U.S. carbon dioxide emissions from fossil fuels moved closely with GDP from 1992 to about 2005, after which the two decoupled, with GDP continuing to rise while emissions fell.
  • Take the Under — Downward revisions to global population and GDP projections make climate change appear more tractable, the author argues, since the scenarios used to model emissions rely on socio-economic assumptions that are more extreme than real-world observations. With slower population and economic growth, even partial policy successes could bring emissions consistent with a 2C target within reach.
  • European Glaciers Have Shrunk 40% Since 2000, Study Says — A study by 35 research teams found that glaciers in the Alps and Pyrenees lost about 40% of their volume in less than a quarter of a century. Excluding the Antarctic and Greenland ice sheets, glaciers elsewhere in the world lost 5% of their volume over roughly the same period.
  • Global Warming
  • Energy
  • Productivity
    • Innovation/Research
  • Science

World’s Oceans Remain Near Record Temperatures as CO2 Levels Rise

AI Summary. Global average sea surface temperature reached 20.79C in May, the second-highest May level on record, while atmospheric carbon dioxide peaked at a global mean of 426 parts per million, up from 423 a year earlier. Scientists estimate the ocean absorbs a quarter to 30% of emitted carbon dioxide and about 90% of excess heat.

Attracta Mooney and Steven Bernard Financial Times
Date Posted:
June 12, 2025
Is Database:
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The world’s ocean temperatures reached the second-highest level on record for May, capping an “alarming” two-year streak of rapid warming. Atmospheric concentrations of CO2 hit their highest seasonal peak since records began, a global mean of 426 ppm.

Are ocean temperatures staying near record highs as carbon dioxide rises?

Core argument: Atmospheric CO₂ peaked globally at a mean of 426 parts per million in March, up from 423 ppm a year earlier, and surpassed 430 ppm at the Mauna Loa Observatory in Hawaii.

The world’s ocean temperatures reached the second-highest level on record for May, capping an “alarming” two-year streak of rapid warming and fueling concerns about the seas’ ability to absorb rising levels of carbon dioxide. The EU’s Earth observation service Copernicus said the global average sea surface temperature in May was 20.79C, 0.14C below the record in the same month in 2024. The level of CO₂ in the atmosphere peaked globally at the mean of 426 parts per million in March, up from 423 ppm a year ago, and surpassed 430 ppm at the Mauna Loa Observatory in Hawaii. Scientists estimate the ocean has absorbed between a quarter and about 30% of carbon dioxide released into the atmosphere and about 90% of excess heat, helping to keep temperatures on land cooler. But Michael Meredith, a scientist at the British Antarctic Survey in Cambridge, warned the ocean “may lose some of its capacity to buffer us against the worst extremes of climate change” by absorbing less warmth or carbon than previously. “We’re seeing stronger and stronger bursts of ocean warming — marine heatwaves — that are pushing us past records at an alarming rate.”

Takeaways by Macro Roundup® AI

  1. Atmospheric CO₂ peaked globally at a mean of 426 parts per million in March, up from 423 ppm a year earlier, and surpassed 430 ppm at the Mauna Loa Observatory in Hawaii.
  2. Scientists estimate the ocean has absorbed between a quarter and about 30% of carbon dioxide released into the atmosphere and about 90% of excess heat, and Michael Meredith of the British Antarctic Survey warned it may lose some of that buffering capacity.

Related Articles:

  • Long-term Surface Impact of Hunga Tonga-Hunga Ha’apai-like Stratospheric Water Vapor Injection — A volcanic eruption that injected large amounts of water vapor — a strong greenhouse gas — into the stratosphere is estimated to have raised surface temperatures by more than 1.5°C across large regions for several years, while cooling some areas by close to 1°C. The authors suggest a possible link to tropical Pacific sea surface temperatures that warrants further investigation.
  • Abrupt Reduction In Shipping Emission As An Inadvertent Geoengineering Termination Shock Produces Substantial Radiative Warming — Fuel regulations that abruptly cut sulfur dioxide emissions from international shipping by about 80% created an inadvertent geoengineering termination shock, and the authors estimate the resulting radiative forcing over the global ocean could double or more the rate of warming in the 2020s relative to the rate since 1980.
  • Take the Under — Downward revisions to global population and GDP projections make climate change appear more tractable, the author argues, since the scenarios used to model emissions rely on socio-economic assumptions that are more extreme than real-world observations. With slower population and economic growth, even partial policy successes could bring emissions consistent with a 2C target within reach.
  • Global Warming
  • Comparisons
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  • Energy
  • Science

China’s Soaring Emissions Are Upending Climate Politics

AI Summary. China has passed the European Union to become the second-largest source of cumulative historical greenhouse gas emissions, behind the United States. Projections based on the International Energy Agency's "stated policies scenario," which tracks nations' current climate actions, show China may nearly catch up with the US.

Brad Plumer and Mira Rojanasakul New York Times
Date Posted:
November 19, 2024
Is Database:
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China’s cumulative carbon emissions since 1850 have outpaced Europe’s but are still 60% of the US’s level. China has been the world’s #1 carbon emitter since 2006.

Is China now the second-largest source of historical emissions?

Core argument: China has passed the European Union's 27 current member states to become the world's second-largest source of cumulative greenhouse gas emissions.

The United States has burned more fossil fuels than anywhere else in history. Europe has long ranked No. 2 in total historical greenhouse gas emissions. Until now. And projections show that China may nearly catch up with the United States. Data for carbon dioxide-equivalent emissions from 1850 to 2023 is from Jones et al (2024); data for 2024 from Carbon Brief; projected data for 2025 to 2100 is based on the International Energy Agency’s “stated policies scenario” tracking nations’ climate actions. European Union totals were calculated for the current 27 member countries. Lines show cumulative territorial CO2 emissions from fossil fuels, cement, land use, land use change and forestry.

Takeaways by Macro Roundup® AI

  1. China has passed the European Union's 27 current member states to become the world's second-largest source of cumulative greenhouse gas emissions.
  2. Projections based on the International Energy Agency's "stated policies scenario" show China may nearly catch up with the United States, which has burned more fossil fuels than anywhere else in history.
  3. The emissions series combines carbon dioxide-equivalent data from Jones et al (2024) for 1850–2023, Carbon Brief for 2024, and IEA-based projections for 2025–2100, covering fossil fuels, cement, and land use, land use change and forestry.

Related Articles:

  • Halfway Between Kyoto and 2050: Zero Carbon Is A Highly Unlikely Outcome — Fossil fuels' share of global primary energy fell only from about 86% to 82% over 25 years, while absolute fossil fuel consumption rose nearly 55%. Emission cuts in the EU (-23%) and US (-9%) were outweighed by China's 3.3x and India's 3x increases, with energy-sector carbon dioxide emissions up 54%.
  • Take the Under — Downward revisions to global population and GDP projections make climate change appear more tractable, the author argues, since the scenarios used to model emissions rely on socio-economic assumptions that are more extreme than real-world observations. With slower population and economic growth, even partial policy successes could bring emissions consistent with a 2C target within reach.
  • The Energy Transition Will Be Much Cheaper Than You Think — Economic models have overestimated adoption of carbon capture and storage while underestimating cost declines in solar panels and lithium batteries. Researchers modelling solar, wind, batteries and hydrogen electrolysers under "Wright's law" — where each doubling of production cuts unit costs by a fixed percentage — estimate emissions fall fast enough to meet the 1.5°C target at minimal cost.
  • Global Warming
  • Politics
  • Science

The Energy Transition Will Be Much Cheaper Than You Think

AI Summary. Economic models have overestimated adoption of carbon capture and storage while underestimating cost declines in solar panels and lithium batteries. Researchers modelling solar, wind, batteries and hydrogen electrolysers under "Wright's law" — where each doubling of production cuts unit costs by a fixed percentage — estimate emissions fall fast enough to meet the 1.5°C target at minimal cost.

Economist Staff The Economist
Date Posted:
November 15, 2024
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Limiting global warming to the 2° target might be more affordable than projected due to slower economic growth and the ongoing decline in the cost of solar power, wind power, and lithium batteries as production volumes increase.

Will falling clean energy costs make cutting emissions far cheaper?

Core argument: Rupert Way of the University of Cambridge and co-authors model an energy system in which solar power, wind power, lithium battery and hydrogen electrolyser costs follow "Wright's law," a scenario in which emissions fall fast enough to meet the 1.5°C target at minimal cost.

Economic modellers also have a poor record of predicting technological advances. They overestimate the take-up of some technologies (such as carbon capture and storage, whereby carbon dioxide is sucked out of the smokestacks of power stations and factories and stashed away safely underground) and severely underestimate the falling costs of others, most notably solar panels and lithium batteries. Rupert Way of the University of Cambridge and others have modelled an energy system in which the cost of solar power, wind power, lithium batteries and hydrogen electrolysers falls according to “Wright’s law”. This holds that every doubling of production sees unit costs fall by a fixed percentage, with that percentage derived from past experience. In this scenario emissions fall so rapidly that even the 1.5°C target can be met at minimal cost.

Takeaways by Macro Roundup® AI

  1. Rupert Way of the University of Cambridge and co-authors model an energy system in which solar power, wind power, lithium battery and hydrogen electrolyser costs follow "Wright's law," a scenario in which emissions fall fast enough to meet the 1.5°C target at minimal cost.
  2. Wright's law holds that every doubling of production cuts unit costs by a fixed percentage, with that percentage derived from past experience.
  3. Economic modellers have overestimated take-up of carbon capture and storage while severely underestimating the falling costs of solar panels and lithium batteries.

Related Articles:

  • Take the Under — Downward revisions to global population and GDP projections make climate change appear more tractable, the author argues, since the scenarios used to model emissions rely on socio-economic assumptions that are more extreme than real-world observations. With slower population and economic growth, even partial policy successes could bring emissions consistent with a 2C target within reach.
  • Global Clean Energy Spending Surges to $1.8 Trillion. It’s Not Enough — Global spending on the clean-energy transition rose 17% to a record $1.8tn, covering renewable power, electric vehicles, hydrogen production and other technologies, with total funding reaching about $2.8tn including supply chains and $900bn in financing. BloombergNEF reports this remains short of a net-zero emissions trajectory.
  • The Dangerous Effects Of Rising Sea Temperatures — The world's oceans have absorbed 90% of excess heat and about a quarter of human-caused carbon dioxide emissions during the industrial era, and scientists are investigating what drove an anomalous rise in sea temperatures and whether seas will cool again. Researchers caution there is no guarantee oceans will keep absorbing heat at the same rate.
  • Global Warming
  • Energy
  • Productivity
    • Innovation/Research
    • Investment
  • Science

Take the Under

AI Summary. Downward revisions to global population and GDP projections make climate change appear more tractable, the author argues, since the scenarios used to model emissions rely on socio-economic assumptions that are more extreme than real-world observations. With slower population and economic growth, even partial policy successes could bring emissions consistent with a 2C target within reach.

Roger Pielke Jr. The Honest Broker
Date Posted:
October 31, 2024
Is Database:
Database
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Important

.@RogerPielkeJr argues that more realistic projections of global population and GDP growth suggest that “even partial future policy successes could more easily bring into view future emissions consistent with a 2C temperature target.”

Do lower population and GDP projections make climate change more tractable?

Core argument: Downward revisions to global population and GDP projections make the challenge of climate change appear more tractable, according to the author, who argues the "assumption space" behind emissions scenarios should shift away from extreme socio-economic assumptions toward scenarios consistent with real-world observations.

Updated understandings of population and GDP suggest that, at a minimum, the “assumption space” used to generate scenarios needs to reorient away from extreme socio-economic assumptions and towards more realistic socio-economic scenarios consistent with observations of the real world. Every time global population GDP projections are revised down, the challenge of climate change appears that much more tractable. Of course, peak population and slower economic growth bring with them considerable societal and policy challenges of their own. “Current policy” projections are based on a very conservative set of assumptions — who thinks there will be no new climate and energy policies? — and many countries have committed to accelerating decarbonization. Conditional on slower-than-projected population and/or GDP growth, that means that even partial future policy successes could more easily bring into view future emissions consistent with a 2C temperature target. Basing our expectations on the latest understandings of population and GDP changes is thus essential for a clear-eyed view of climate and energy challenges.

Takeaways by Macro Roundup® AI

  1. Downward revisions to global population and GDP projections make the challenge of climate change appear more tractable, according to the author, who argues the "assumption space" behind emissions scenarios should shift away from extreme socio-economic assumptions toward scenarios consistent with real-world observations.
  2. "Current policy" emissions projections rest on the conservative assumption that no new climate and energy policies will be adopted, even though many countries have committed to accelerating decarbonization.
  3. Conditional on slower-than-projected population and GDP growth, even partial future policy successes could more easily bring future emissions consistent with a 2C temperature target into view, though peak population and slower growth carry their own societal and policy challenges.

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  • The Age of Depopulation: Surviving a World Gone Gray — The United States remains the main outlier among developed countries resisting depopulation, with fertility of just over 1.6 births per woman — high for a rich country but below the 2.1 replacement threshold — plus steady immigration. The Census Bureau projects the U.S. population will peak around 2080 and decline continuously thereafter.
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The Dangerous Effects Of Rising Sea Temperatures

AI Summary. The world's oceans have absorbed 90% of excess heat and about a quarter of human-caused carbon dioxide emissions during the industrial era, and scientists are investigating what drove an anomalous rise in sea temperatures and whether seas will cool again. Researchers caution there is no guarantee oceans will keep absorbing heat at the same rate.

Attracta Mooney, Steven Bernard and Jana Tauschinski Financial Times
Date Posted:
July 24, 2024
Is Database:
Database
Is Important:
Important

Oceans have absorbed 90% of the heat from human-caused carbon dioxide emitted during the industrial era, but some scientists are concerned that oceans may be reaching their limits in protecting the planet against the worst extremes of climate change.

Will the oceans keep absorbing most of the world's excess heat?

Core argument: The world's oceans have absorbed 90% of excess heat and about a quarter of human-caused carbon dioxide emitted during the industrial era, heat that did not go into the land surface, atmosphere or ice caps.

Scientists are now trying to understand what has driven the rapid anomalous rise in sea temperatures, why that heat has lingered and whether the world’s seas will cool again. At the heart of these questions is a concern that the oceans may be reaching their limits in the vital role they play in protecting the planet against the worst extremes of climate change. They have absorbed 90% of excess heat and about a quarter of human-caused carbon dioxide emitted during the industrial era. “All that heat that’s going into the ocean is not going into the land surface or into the atmosphere, or into the ice caps,” says Michael Meredith, oceanographer and science leader at the British Antarctic Survey. “The ocean has been doing this huge climate favour for us for decades.” But he adds there is no guarantee it will continue doing so at the same rate. “If this does slow in future, the consequences will be like we saw in 2023 [the hottest year on record] but much more so.”

Takeaways by Macro Roundup® AI

  1. The world's oceans have absorbed 90% of excess heat and about a quarter of human-caused carbon dioxide emitted during the industrial era, heat that did not go into the land surface, atmosphere or ice caps.
  2. Scientists are investigating what drove the rapid anomalous rise in sea temperatures, why that heat has lingered and whether the seas will cool again, amid concern that the oceans may be reaching the limits of their protective role.

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  • Heating Waters Force Change in Industries That Depend on the Ocean — Nearly half the world's oceans are experiencing a marine heatwave, defined as warmer than 90% of previous temperature observations for the same date. Beyond climate change and the El Niño/La Niña cycle, researchers are investigating whether rules cutting ships' sulfur particle pollution and water vapor from an underwater volcanic eruption are contributing, with the magnitude disputed.
  • What This Year’s ‘Astonishing’ Ocean Heat Means for the Planet — The planet's average sea surface temperature reached a record high and the ocean has stayed exceptionally warm, with North Atlantic readings running more than 2°F above typical levels and one buoy recording 101.1°F, possibly a world record. Scientists expect warm ocean conditions to continue as El Niño intensifies.
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