Another 24 countries have joined the global pact to slash methane emissions by the end of the decade.

That's equivalent to almost two-thirds of the world's economy.

The deal, which will be formally announced at the COP26 summit, commits nations to cutting methane by 30% from sectors like agriculture and the oil industry.

Supporters say it's a crucial way of keeping the rise in global temperatures below 1.5 Celsius.

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