Australia, Brazil and Saudi Arabia are apparently trying to water down an upcoming U.N. science panel report on global warming

The head of environmental group Greenpeace on Thursday warned against efforts by countries and corporations at the forthcoming U.N. climate talks in Glasgow to “greenwash” their ongoing pollution of the planet, AP reports.

The summit hosted by Britain has been described as “ the world’s last best chance ” to prevent global warming from reaching dangerous levels, and is expected to see a flurry of new commitments from governments and businesses to reduce their emissions of greenhouse gases.

But climate campaigners say behind-the-scenes lobbying before the summit could hamper efforts to achieve an ambitious deal that would ensure the world stands a chance of capping global warming at 1.5 degrees Celsius (2.7 Fahrenheit) as agreed in Paris in 2015.

“This Glasgow meeting really is a vital moment where governments need to be courageous,” said Jennifer Morgan, the executive director of Greenpeace International.

“They need to show they’ve understood the science, listen to their people and go much further than they’ve been stating thus far,” she told The Associated Press in an interview.

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