Plan to cut overlooked methane emissions could help stop global warming faster

Methane emissions, responsible for approximately half of the global warming experienced to date, have received less attention than carbon dioxide. A team of researchers from Duke University emphasizes the urgent need to address methane emissions to combat climate change effectively. They propose a three-step plan: first, reduce methane emissions; second, coordinate efforts to tackle both methane and carbon dioxide; and third, incentivize and enforce methane abatement measures. Currently, only about 2% of global climate finance is directed towards reducing methane emissions, which are rising due to fossil fuel production and climate-driven changes in wetlands.

The researchers advocate for the Global Methane Pledge, aiming for a 30% reduction in methane emissions from 2020 levels by 2030. They highlight that methane's short atmospheric lifespan means that reductions can yield rapid climate benefits. The economic costs of methane emissions are significant, with estimates suggesting damages could reach up to $7,000 per tonne when considering health impacts. The team has developed an online tool to help countries identify the most effective methane reduction strategies based on their specific circumstances.

Individual actions, such as reducing beef and dairy consumption and supporting composting initiatives, can also contribute to methane reduction. The researchers stress the importance of a comprehensive approach across various sectors to meet climate targets and mitigate the accelerating impacts of climate change.