Keystone oil pipeline leaks in S.Dakota, as Nebraska weighs XL
President Trump has argued the Keystone oil pipeline will lower fuel prices, shore up national security and bring jobs
Trump adviser says past U.S. emissions a "distraction" in fixing climate
China recently overtook the United States as the biggest annual emitter of gases blamed for causing climate change
Poland aims to sign global climate deal amendment this year
Poland generates most of its electricity in outdated coal-fired power stations
Nineteen nations say they'll use more bioenergy to slow climate change
The 19 countries represent half the world's population and 37 percent of the global economy
Climate change denial or indifference are "perverse attitudes" - pope
Pope Francis called climate change "one of the worst phenomena that our humanity is witnessing"
Ivory Coast to expel cocoa farmers from largest forest reserve
The decision is part of efforts to protect forests in Ivory Coast, which has lost much of its rainforest to agriculture
At least 15 states join global alliance to phase out coal by 2030
Some of the biggest coal users, such as China, the United States, Germany and Russia, have not signed up to the alliance
Twenty countries join global alliance to phase out coal by 2030
The alliance, which is not legally binding, aims to have at least 50 members by the next U.N. climate summit in 2018
Storebrand says drops 10 coal firms from pension fund
"We see it as our responsibility to challenge the coal industry even further" - Storebrand
U.S. biofuels policy contributes to global warming -study
Blending biofuels into petroleum products will reduce emissions, but this is offset by emissions from clearing new farmland