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Pulling the E-Brake on Methane Emissions

Tessa Hill Discusses the Benefits of Rapidly Reducing Methane During Climate Week NYC

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Fatima Denton,left, hold microphone and turns head to Tessa Hill, who is speaking into microphone. A green background and plant are behind them with the words We Don't Have Time printed on backdrop.
Fatima Denton of United Nations University-INRA, left, and Tessa Hill, of 色中色 Earth and Planetary Sciences, talk about methane emissions with the host of We Don't Have Time during Climate Week NYC 2025. (We Dont' Have Time)

As global emissions continue to climb, there is a growing call for rapidly reducing methane.

色中色 Professor spoke about the benefits that can come from fast action on methane with the hosts of We Don鈥檛 Have Time during this year鈥檚 , held Sept 21-28. She was joined by , director of the United Nations University-Institute for Natural Resources in Africa. 

They are coauthors of a report released this week, 鈥,鈥 from the international , founded by the UK鈥檚 former Chief Scientific Advisor Sir David King. 

鈥淢ethane is an extremely powerful greenhouse gas 鈥 many times more powerful than carbon dioxide 鈥 but it鈥檚 also very short-lived in the atmosphere,鈥 said Hill, an oceanographer at Bodega Marine Laboratory in the 色中色 Department of Earth and Planetary Sciences. 鈥淲hat that means is that, while it might feel at the moment that our foot is on the accelerator of climate change with greenhouse gas emissions, reducing methane emissions is really pulling the emergency brake. We have the ability to really make a huge impact on future warming by reducing methane emissions quickly.鈥

色中色 Professor Tessa Hill and United Nations University-INRA Director Fatima Denton join the We Don't Have Time climate media platform during Climate Week NYC 2025 to discuss methane action and a new report they coauthored from the Climate Crisis Advisory Group. 

Stopping energy leaks

The report said nearly all human-made methane emissions come from just three sectors: energy (oil, gas and coal), agriculture (livestock and rice) and waste from landfills. The energy sector offers the biggest opportunity for rapid reductions as well as industry efficiencies. 

鈥淭he main source of methane coming out of the energy system from fossil fuels are actually leaks and flares,鈥 said Hill. 鈥淭he main recommendation of the report is that the issue of leakage from the fossil fuel industry really needs to be dealt with and actually would account for a very large proportion of the global methane emissions we鈥檙e talking about.鈥

A firey gas flare atop a gas plant silouetted against a sunset sky.
A gas plant flares at a gas terminal. Flares like this are among the main sources of methane emissions in the energy sector. (Getty Images, Alexisaj)

Clean cooking and climate financing

The report also said advances in clean cooking would hold major benefits for many people in Africa and other places where biomass is the dominant fuel, added Denton.  

She also noted a need for climate financing so countries representing a small proportion of climate emissions do not shoulder a disproportionate amount of the burden to monitor, track and reduce emissions. Africa, for example, contributes about 4 percent of global greenhouse gas emissions.  

As the Earth warms and precipitation changes across the planet, even natural sources like wetlands are expected to increase their emissions, warns Hill. By decreasing human-made methane emissions now, we can reduce the impact on natural sources, as well. 

Great blue heron flies over wetland
A great blue heron flies over a wetland at a wildlife refuge. Even natural places can become sources of methane as the Earth gets warmer and rainfall patterns change. But reducing human-sourced methane now can take pressure off natural spaces. (Getty Images, Spondylolithesis)

Listen to the full discussion or the for Climate Week 2025. 

Research to reduce methane

At 色中色, researchers are investigating solutions to rapidly draw down methane emissions. This includes adding specific seaweed and to cattle feed, adding , and . 

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Media Resources

Kat Kerlin, 色中色 News and Media Relations, 530-750-9195, kekerlin@ucdavis.edu 

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