Smart choices by cities like Miami in planning & investment could hold key to cutting emissions.
IPCC report's last installment says major shift to renewable energy needed to limit CO2 emissions.
IPCC warns about climate change, weather-related power outages, drought, Cyclone Ita and more.
A new way to make hydrogen quickly & easily brings hope it will be scaled up to produce commercial quantities.
Energy from surplus wind power will provide “battery” power to even out energy supply and demand.
Group monitoring how investment funds manage climate risks says many expose investors to huge losses.
The UN's climate chief says it would be too 'politically difficult' to negotiate carbon emissions based on the IPCC's findings.
U.S. carbon dioxide emissions related to energy consumption in 2012 dropped to their lowest point since 1994.