Methane is the biggest source of global warming after carbon dioxide and has caused around a quarter of the heating the world is already experiencing as a result of greenhouse gas emissions, said Dr Pep Canadell, chief research scientist at the CSIRO’s climate science centre.
When burnt for energy, methane produces around a third of the amount of carbon dioxide that coal does to create the same amount of electricity. But when it escapes or is vented during transport and production processes it has 86 times the warming effect of carbon dioxide when averaged over 20 years.
Overnight the UN was expected to release an assessment of 2030 targets, known as Nationally Determined Contributions, showing that they are still mostly insufficient and in some cases getting worse. China, India, Saudi Arabia and Turkey, which are collectively responsible for 33 per cent of global greenhouse gases, are yet to submit updated NDCs, according to an assessment released by Climate Analytics.
“That is precisely the promise 195 countries made to the world’s peoples. Now science is shouting from the rooftops that it’s time to level up actions in an order of magnitude sufficient to the challenge.
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