Flux continu

Earth’s albedo (reflectivity) declined over the 25 years of precise satellite data, with the decline so large that this change must be mainly reduced reflection of sunlight by clouds. Part of the cloud change is caused by reduction of human-made atmospheric aerosols, which act as condensation nuclei for cloud formation, but most of the cloud change is cloud feedback that occurs with global warming. The observed albedo change proves that clouds provide a large, amplifying, climate feedback. This large cloud feedback confirms high climate sensitivity, consistent with paleoclimate data and with the rate of global warming in the past century.

intimidation from President Donald Trump’s administration and urged Americans to prepare to “possibly sacrifice” in support of democratic values. In a speech Thursday night at Hamilton College in Clinton, New York, Obama also accused Trump’s government of working to destroy the international order created after World War II.

The 29-year-old was arrested by City of London police after activists said they had cut the cables to insurance company offices in London, Leeds, Birmingham and Sheffield on Monday. In a press release, the group, which calls itself Shut the System, said it had targeted insurers “due to their critical role underpinning the fossil fuel economy through underwriting contracts and investments”.

The story of Greenland keeps getting greener—and scarier. A new study provides the first direct evidence that the center—not just the edges—of Greenland's ice sheet melted away in the recent geological past and the now-ice-covered island was then home to a green, tundra landscape.

Top oil and gas companies have made little progress in turning away from hydrocarbons and towards the goals of the 2015 Paris climate deal, multinational nonprofit platform CDP said on Thursday.

Industry funds ‘grassroots’ resistance to tougher rules while touting green credentials, study shows

António Guterres compares climate inaction to tobacco firms dismissing links between smoking and cancer

Scientists at Scripps Institution of Oceanography at UC San Diego used an unprecedented technique to detect that levels of helium are rising in the atmosphere, resolving an issue that has lingered among atmospheric chemists for decades.

Germany is bracing for supplies to be cut by Moscow in retaliation for sanctions or as part of an energy embargo

Accusations of greenwashing against major oil companies that claim to be in transition to clean energy are well-founded, according to the most comprehensive study to date.