solar geoengineering Archives

solar geoengineering

The global conversation about solar geoengineering just changed at the UN Environment Assembly. Here’s how.

Duncan McLaren and Olaf Corry reflect on the implications of the UNEA-6 non-decision on solar radiation modification for research and governance

As we wrote in part 1, a Swiss-led proposal to the UN Environment Assembly (UNEA) to establish an expert group on solar radiation management (SRM) proved divisive and was eventually withdrawn. Here we explore why, and what that means for any global conversation about SRM. SRM has long generated concerns that, as a powerful lever …

Continue reading “The global conversation about solar geoengineering just changed at the UN Environment Assembly. Here’s how.”

Countries failed to agree first steps on solar geoengineering at the UN. What went wrong?

Duncan McLaren and Olaf Corry observed as diplomats in Nairobi wrestled with a resolution on solar radiation management

In the last weeks, diplomats from all over the world were negotiating more than twenty draft resolutions at the UN Environment Assembly (UNEA). The Assembly is a biennial intergovernmental meeting which sets the global environmental agenda. It also sets the strategy for the UN Environment Programme (UNEP), and outlines policy responses to address emerging environmental …

Continue reading “Countries failed to agree first steps on solar geoengineering at the UN. What went wrong?”

A Big Year on Legal Planet

Here are the 12 most popular topics in environmental law and climate policy on Legal Planet based on our most-read posts from 2023.

It’s an understatement to say that 2023 was a transformative year for the U.S. climate movement. We saw rapid implementation of landmark federal climate laws, a series of big actions on methane emissions, a deal on Colorado River water usage, and bigger-than-expected climate victories in Sacramento. EPA’s control of toxic chemicals was tested, the U.S. …

Continue reading “A Big Year on Legal Planet”

The Overshoot Commission Addresses Geoengineering

The Commission tries to make it OK to talk about – not do – solar geoengineering. Its report proposes a moratorium, coupled with efforts to carefully build knowledge.

In this, my third post on the recently released report of the Climate Overshoot Commission, I’ll discuss their treatment of the most challenging and controversial part of their mandate, Solar Geoengineering or Solar Radiation Modification (SRM). As I noted in my introductory post on the Commission, I served as an advisor to the Secretariat and …

Continue reading “The Overshoot Commission Addresses Geoengineering”

Comparing the Risks of Climate Change and Geoengineering

The OSTP has adopted a ‘risk-risk’ framing in its report on geoengineering research: will this help or hinder sound climate policy?

Last month’s report on solar geoengineering research from the White House Office of Science and Technology Policy (OSTP) consolidated a shift in the discourse on this controversial technology. Over recent years advocates for more research have increasingly adopted a ‘risk-risk’ framing. As Gernot Wagner puts it in ‘Geoengineering: the Gamble’: “The decision is all about …

Continue reading “Comparing the Risks of Climate Change and Geoengineering”

Should There Be a ‘Non-Use’ Agreement on Solar Geoengineering?

Why I signed the call for a non-use agreement, and what that might mean for research.

Although I’m a newbie at the Emmett Institute, I have been working on geoengineering for a decade now. I have heard countless arguments over whether and how solar geoengineering could be useful in the struggle to manage climate change. I have seen deeply misleading claims by both its supporters and detractors, many trying to coopt …

Continue reading “Should There Be a ‘Non-Use’ Agreement on Solar Geoengineering?”

What if someone just does it?

A scenario exercise on unauthorized use of solar geoengineering

Note: This post is co-authored with Jesse L. Reynolds, who recently completed an Emmett Institute Geoengineering Governance Fellowship As the climate crisis grows more urgent, unconventional technological responses are getting increased attention and controversy. We’ve written previously on Legal Planet about these technologies and their promise and risks. The most high-stakes and controversial of these …

Continue reading “What if someone just does it?”

UCLA Law Faculty Weigh In on Solar Geoengineering Experiment at Harvard

How to engage the public when everyone on Earth is a stakeholder?

It’s been a surprisingly busy year for solar geoengineering research. In late December, Congress appropriated $4 million to NOAA to study the influence of atmospheric aerosols on climate, with an eye on assessing “solar climate interventions.” In March, Australian scientists ran a trial of a cloud-seeding technology on the Great Barrier Reef that may …

Continue reading “UCLA Law Faculty Weigh In on Solar Geoengineering Experiment at Harvard”

We Need a True Debate Over Income-Graduated Fixed Charges

A state bill to cap the fixed charges utilities can collect in California would shut down an important debate about equity and rate design. Here’s a better way forward.

Could Trump Cancel the IRA?

Probably not. But also possibly yes.

Climate Action for Earth Day

“We have a long way to go, but we’ve started down the path.” I asked my UCLA Emmett Institute colleagues what climate actions give them hope on Earth Day. Here’s how they answered.

A New Era for Protecting Public Lands

The Bureau of Land Management has always prioritized extraction activities. Now the agency has announced a rule that could elevate conservation.

Don’t Count Your Judicial Vultures Before They Hatch

The conservative Supreme Court majority may turn out as bad as we fear. Or maybe not.

Filling in the Picture: The Latest From Kennedy about Climate

Here’s what Kennedy says about his campaign, its effect on the race, and climate change.

Five Myths and Half-Truths About California Cap and Trade

California has spent years fine-tuning its trading system, with results that aren’t always easy to gauge.

U.S. Supreme Court Revisits, Tightens Regulatory Takings Limits on Land Use Regulation

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

California Wins Major Clean Air Act/Climate Change Case in D.C. Circuit

U.S. Court of Appeals Rejects Red States’ Challenge to California’s CAA “Waiver Authority”

Shanahan, Kennedy and Climate Change: Unanswered Questions

It’s clear that RFK Jr.’s running mate has good intentions and an interest in climate issues. But not much is clear beyond that.

California Wins Major Clean Air Act/Climate Change Case in D.C. Circuit

U.S. Court of Appeals Rejects Red States’ Challenge to California’s CAA “Waiver Authority”

Florida is a Climate-Denying Hellscape

Florida lawmakers want to erase climate change from their laws and ban local heat protection ordinances ahead of what could be another summer of record-breaking heat.

U.S. Supreme Court Revisits, Tightens Regulatory Takings Limits on Land Use Regulation

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

We Need a True Debate Over Income-Graduated Fixed Charges

A state bill to cap the fixed charges utilities can collect in California would shut down an important debate about equity and rate design. Here’s a better way forward.

Will the NEPA Amendments Speed Up Permitting?

Probably not much. If at all.

Could Trump Cancel the IRA?

Probably not. But also possibly yes.

Climate Action for Earth Day

“We have a long way to go, but we’ve started down the path.” I asked my UCLA Emmett Institute colleagues what climate actions give them hope on Earth Day. Here’s how they answered.

solar geoengineering

Duncan McLaren and Olaf Corry reflect on the implications of the UNEA-6 non-decision on solar radiation modification for research and governance

Duncan McLaren and Olaf Corry observed as diplomats in Nairobi wrestled with a resolution on solar radiation management

Here are the 12 most popular topics in environmental law and climate policy on Legal Planet based on our most-read posts from 2023.

The Commission tries to make it OK to talk about – not do – solar geoengineering. Its report proposes a moratorium, coupled with efforts to carefully build knowledge.

The OSTP has adopted a ‘risk-risk’ framing in its report on geoengineering research: will this help or hinder sound climate policy?

Why I signed the call for a non-use agreement, and what that might mean for research.

A scenario exercise on unauthorized use of solar geoengineering

How to engage the public when everyone on Earth is a stakeholder?

TRENDING

A state bill to cap the fixed charges utilities can collect in California would shut down an important debate about equity and rate design. Here’s a better way forward.

Probably not. But also possibly yes.

“We have a long way to go, but we’ve started down the path.” I asked my UCLA Emmett Institute colleagues what climate actions give them hope on Earth Day. Here’s how they answered.

The Bureau of Land Management has always prioritized extraction activities. Now the agency has announced a rule that could elevate conservation.

The conservative Supreme Court majority may turn out as bad as we fear. Or maybe not.

Here’s what Kennedy says about his campaign, its effect on the race, and climate change.

California has spent years fine-tuning its trading system, with results that aren’t always easy to gauge.

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

U.S. Court of Appeals Rejects Red States’ Challenge to California’s CAA “Waiver Authority”

It’s clear that RFK Jr.’s running mate has good intentions and an interest in climate issues. But not much is clear beyond that.

U.S. Court of Appeals Rejects Red States’ Challenge to California’s CAA “Waiver Authority”

Florida lawmakers want to erase climate change from their laws and ban local heat protection ordinances ahead of what could be another summer of record-breaking heat.

California Homeowner’s Takings Challenge to County’s Traffic Impact Fee Heads Back to State Court

A state bill to cap the fixed charges utilities can collect in California would shut down an important debate about equity and rate design. Here’s a better way forward.

Probably not much. If at all.

Probably not. But also possibly yes.

“We have a long way to go, but we’ve started down the path.” I asked my UCLA Emmett Institute colleagues what climate actions give them hope on Earth Day. Here’s how they answered.

The Bureau of Land Management has always prioritized extraction activities. Now the agency has announced a rule that could elevate conservation.

The conservative Supreme Court majority may turn out as bad as we fear. Or maybe not.

Here’s what Kennedy says about his campaign, its effect on the race, and climate change.