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More than 30 countries have joined pledge to slash climate-warming methane emissions by 30%

By Ella Nilsen and Angela Dewan, CNN

Canada, Nigeria, Japan and Pakistan are among 31 parties to join a global pledge, led by the US and EU, to slash planet-warming methane emissions by 30% by the end of the decade, US climate enjoy John Kerry announced Monday.

Kerry said the agreement, which was announced last month, now included nine of the top 20 emitters.

“And that represents over 60% of the global economy,” Kerry said at a virtual press conference with the EU’s Frans Timmermans, who also oversees climate issues. “We’re all very eager to roll up our sleeves and get to work.” We’re all very eager to roll up our sleeves and get to work.”

Scientists say reducing methane emissions is the quickest way to slow global warming. Methane has a stronger warming effect than carbon dioxide warming effect, though it doesn’t stay in the atmosphere as long.

Biden administration officials, including Kerry, have called curbing methane emissions one of the most important short-term strategies to rein in the climate crisis.

Atmospheric methane concentrations have risen rapidly over the past decade, with five-year average growth rates now rivaling those seen in the 1980s. It is responsible for around 30% of the global rise in temperatures to date, the International Energy Agency says.

US President Joe Biden announced the methane agreement with the EU on September 17 in a a virtual, closed-door meeting with other world leaders on climate on the sideline of the UN General Assembly. The US and EU have been campaigning for other countries to join ahead of the pivotal COP26 climate conference in Glasgow, to begin later this month.

Methane is the main component of natural gas used widely for cooking and heating homes, but it can also be produced in nature by belching volcanoes, decomposing plant matter, landfills, livestock and leaks from oil, gas and coal infrastructure.

Natural gas has been hailed as a “bridge fuel” that would transition the US to renewable energy because it is more efficient than coal and emits less carbon dioxide when burned. Importantly for industry, natural gas is in abundant supply around the world and is less costly to extract from the ground.

But proponents for this new “cleaner” gas missed a dangerous threat: that it could leak, unburned, into the atmosphere and cause significant warming.

In a report published lat week that laid out pathways to reducing methane emissions by 75% over this decade, the IEA emphasized the role of reductions in the oil, gas and coal operations, saying they would have immediate impacts.

Fossil fuel operations emitted nearly 120 million metric tons of methane last year, nearly a third of all methane emissions from human activity, the IEA reported.

“Much of these emissions are simply leakage along the production and supply chain that operators fail to capture or avert. There are cost-effective ways to limit these emissions, especially in the oil and gas sector,” the IEA said in a statement.

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CNN’s Rachel Ramirez contributed to this report.

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