"The path to saving the Great Barrier Reef is narrow, but it exists," said one observer. "Strong and rapid action can produce results."

"As the USPS forges ahead with its ill-conceived and controversial decision to pollute communities across the nation," said the Sierra Club, "we demand to see the details surrounding the agency's decision."

"Against the mountains of evidence these same companies misled the public for decades about the climate impacts of their products," one advocate said that "it is reasonable and appropriate to investigate whether and how they used a similar playbook for plastics."

"Racism from the 1930s, and racist actions by people who are no longer alive, are still influencing inequality in air pollution exposure today," the study's lead author noted.

"If we want to avoid catastrophic climate change, the highest priority must be to reduce CO2 pollution to zero at the earliest possible date."

The Swedish campaigner says insufficient goals and empty rhetoric represent the "biggest elephant there's even been in any room."

NOAA warned that carbon dioxide and methane "continued their unrelenting rise in 2020."

"Trump's nightmarish giveaway to polluters will sicken millions of the most vulnerable people across this country."