An attendee wears a GOP elephant necklace during a California Republican Party convention in Burlingame, California. Stephen Lam / Reuters
"A lot of young conservatives are frustrated by the false choice between no climate action and a big government regulatory scheme."
A snowshoe hare stands near Thule air base in Pituffik, Greenland. Photograph: Mario Tama/Getty Images
George W Bush speaks at the US ocean and atmospheric administration in 2002, where he emphasised the "scientific uncertainties" of climate change (Photo: George Bush White House)
The marshy, tundra landscape near Newtok, Alaska, is seen from a plane in July 2015. (Andrew Burton/Getty Images)
A handout picture released by British Antarctic Survey shows the Larsen C iceberg. Photograph: Ali Rose/AFP/Getty Images
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Marshes near Jean Lafitte. Rising sea levels and land loss are driving back Louisiana’s coastline, and a fourth of the state’s wetlands are already gone. Photograph by WILLIAM WIDMER