Methane
The Other Half of Climate: Policy, Capital, and the Race to Scale Superpollutant Solutions
Learn how California is using satellite data to pull the emergency brake on global warming.
Methane and other short-lived climate pollutants (SLCPs) are responsible for nearly half of today’s net global warming. Because they exit the atmosphere quickly, reducing them can serve as an ‘emergency brake’ on rising temperatures. At the San Francisco Climate Week, UC Berkeley’s Center for Law, Energy and the Environment (CLEE) and the Institute for Governance …
CONTINUE READINGMethane, Exposed
Two new reports from the UCLA Emmett Institute reveal some of the largest methane sources in 2025.
One of the transformations in the climate policy world over the last few years has been the (rightful and helpful) rise in focus on methane pollution. For a long while, carbon dioxide was the attention-grabbing greenhouse gas, the one at which most policy initiatives were aimed. And CO2 remains critically important, of course. But folks …
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CONTINUE READINGPolicy Implications of Accelerating Warming
If warming is coming more quickly, we need to pick up the pace on policy responses.
There seems to be an emerging scientific consensus that the rate of global warming is rising. After screening out the effects of natural factors like El Niño, scientists have concluded that the pace of warming has roughly doubled since the 1970s. What does this tell us about policy? Some of the implications are more obvious than others, and at least one implication may be unsettling for some climate advocates. Most obviously, we need to accelerate our efforts to carbon emissions. We will be closing in on possible tipping points faster than expected. Climate impacts that we might have expected twenty years from now could hit in half that time.
CONTINUE READINGWe are Hitting a Major Methane Milestone
The Drain is a weekly roundup of environmental and climate news from Legal Planet.
This year, we celebrate 250 years since its discovery. No, I don’t mean America (though plans are underway to celebrate the semiquincentennial this July.) I’m talking about methane — that colorless, odorless, flammable and short-lived but super potent greenhouse gas that is helping heat the planet faster than carbon dioxide. It was 250 years ago …
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CONTINUE READINGPointing a Finger at Methane
UCLA launches the STOP Methane Project with Top 25 in ’25 lists of methane super-polluters.
Almost exactly 10 years ago, I got a call from a Los Angeles city leader asking if I’d be willing to attend a town hall in Porter Ranch, California, to help field questions about the unfolding disaster that was the Aliso Canyon natural gas leak, to provide background on environmental law for the discussion. As …
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CONTINUE READINGHunting Methane Using Satellites
Joint UC Berkeley – UCLA Law report aims to help policymakers harness the methane data revolution.
A stream of data about methane—a potent greenhouse gas—is now constantly being beamed down from space. New methane satellites provide a powerful data capability for governments who want to demonstrate leadership in climate policy. To equip policymakers with necessary information on satellite methane data, UC Berkeley Law’s Center for Law, Energy and the Environment (CLEE), …
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CONTINUE READINGOne Bright Spot to COP29 in Baku
The outcome of this year’s U.N. climate conference was depressing. But there was some notable news regarding global methane emissions commitments.
Some have described the United Nations Climate Change Conference (COP29) in Baku as “challenging,” “ineffective,” and “disappointing.” On the one hand, global greenhouse gas emissions have reached an all-time high, and the temperature for 2023 is the highest ever recorded. On the other hand, President-elect Donald Trump announced his intention to withdraw the U.S. from …
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CONTINUE READINGCPUC Should Set a Date for Closing Aliso Canyon
A proposed decision on the gas facility gives too much deference to SoCalGas regarding the future of gas demand and misses an opportunity to set a clear mandate.
The Aliso Canyon gas storage facility blowout in 2015-16 was the largest methane gas leak in the history of the United States. In addition to the climate effects from the methane leakage — 109,000 metric tons, the equivalent of burning over 1 billion gallons of gasoline — there were tremendous health impacts on neighboring communities …
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CONTINUE READING7 Reasons California Should Get Tougher on Methane from Dairies
California lawmakers should rethink the role of dairy digesters in the state’s dairy and livestock mitigation strategy.
Even though California aims to decrease the emissions of methane, dairy operations are rewarded for creating, and capturing, more and more of the planet-warming super pollutant in the form of manure-derived biogas. Today, California lawmakers declined to correct that perverse incentive, but they still have opportunities to rethink the state’s embrace of digesters as its …
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CONTINUE READINGThe Unique Legal Context of EPA Methane Regulations
Three separate congressional actions intersect to support the regulations.
The government’s efforts to control methane have followed a complicated path, involving three different congressional actions: section 111 of the Clean Air Act, which allows EPA to regulate emissions of greenhouse gases; a congressional override of an earlier regulatory action; and a newer statute that creates a fee on methane emissions. The upshot is to …
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