Michael Grimm was one of a precious few Republican politicians who actually accepted the science of climate change.
The Japan Meteorological Agency released data confirming that 2014 was the hottest year globally since record-keeping began.
A year of extreme weather, climate denial, and some hope.
But climate change could disrupt their spectacular annual migration.
Climate supervillain Australia just pulled a Magneto.
Under pressure to get a publishing giant into the iconic tower, the site's developers may have sacrificed a core part of its green plans.
The world's top emitter is pledging to cap coal use starting in 2020.
A Beijing man uploaded one photo every day. The results are terrifying.
The U.S.-China talks could be a crucial step in the fight against global warming.