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Nacreous clouds also known as polar stratospheric clouds have been appearing across northern skies. We've rounded up some of the best photos of these rare 'rainbow clouds'.
"Fearing "horrific" risks from a rising ocean that could swamp low-lying islands, the Pacific nation of Tuvalu aims to reinforce its coasts in a novel partnership with Australia aimed at helping the developing island state adapt to climate change."
As the world swelters through record temperatures, scientists say an unusual culprit may be partly to blame: an underwater volcanic eruption off Tonga in the South Pacific last year.
F or Indigenous leader Zenivaldo Bezerra, listening to the "enchanted" - ancestral spirits - required waiting until the dead of night for absolute silence in his rural community in northeastern Brazil.
Sun, 6 Jan 2013 18:00 GMT Reuters * Trees could add to toxic ozone-Lancaster University * Could cause almost 1,400 premature deaths in Europe a year * Study shows biofuels not totally benign vs fossil fuels By Environment Correspondent Alister Doyle OSLO, Jan 6 (Reuters) - Green schemes to fight climate change by producing more…