Passed unanimously, the city is legally bound to reach 100% renewables by 2035.
Cities can fill the yawning gap left by country climate pledges, along with announcements on green buildings, lighting, geothermal and waste.
Without a global carbon tax, we can't bring emissions down fast enough to avoid catastrophe.
Rather than fighting EPA's power plant regulations through ALEC, one of the biggest utilities finally views them as a good investment.
13 US states and three countries and Quebec signed this pledge, which would significantly cut emissions in the sector where they are growing the most.
China will cut power plant emissions 60% by 2020, and Africa is leapfrogging to renewable energy with an incredible goal of 300 GW by 2030.
The judge ruled the state has a constitutional obligation to protect the earth's atmosphere.
The 34-nation OECD agreed to stop financing inefficient coal-fired power plants, cutting funding for 85% of coal plants in the pipeline.
Calling the UN Climate Summit an essential meeting for humanity, French Prime Minister Valls says the conference will go ahead as planned.
There are clear signs that the energy transition is underway, says IEA's World Energy Outlook.