"A new scientific assessment of government commitments to eliminate greenhouse gas emissions found most lack credibility and would put the world on track to experience catastrophic global warming by the end of this century.
About 90 per cent of net-zero plans by a group of about three dozen countries are unlikely to be achieved, with confidence levels of “lower” or “much lower,” according to a study published Thursday in Science. Among the laggards are India, Australia, Brazil, Indonesia, South Africa and the United Arab Emirates, host of the upcoming United Nations climate summit. The world’s top two emitters, China and the US, ranked in the “lower” category.
“Achieving net zero is difficult, but just looking at the near term and taking the first steps is not enough,” said Joeri Rogelj, the paper’s lead author and a professor of climate science at Imperial College London. “The hard steps in the long run need to be planned for today.”