Source: Justin Rowlatt, BBC, 5/6/21


Reducing emissions of methane gas is vital for tackling climate change in the short-term, a major UN report says. Methane is produced when living things decompose; it's also in natural gas. It persists for just a short time in the atmosphere - unlike carbon dioxide - but methane is a much more potent global warming gas than CO2. The report says "urgent steps" are necessary in order to reduce methane if global warming is to be kept within a limit laid down in the Paris deal.

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