"GENEVA -- Cancer is now the world’s biggest killer, and the number of cases will explode over the next 20 years, warns a new global report compiled by the International Agency for Research on Cancer, an agency of the World Health Organization."

"Former New York City Mayor Michael Bloomberg has been tapped to be U.N. special envoy for cities and climate change, sources familiar with the situation said on Thursday."

"BRIGHTON, UK -- Controversial pesticides ingested by bumble bees can seriously impact the insects’ ability to collect food, even at very low levels of contamination, finds new research from the University of Sussex and the University of Stirling."

"WASHINGTON -- The National Security Agency monitored the communications of other governments ahead of and during the 2009 United Nations climate negotiations in Copenhagen, Denmark, according to the latest document from whistleblower Edward Snowden."

"Polar bears have shifted to a diet of more land-based food in response to climate change and melting sea ice in the Arctic, new research finds."

"The world's biggest trading powers pledged on Friday to work toward a global agreement on free trade in environmental goods, but they gave no timeline for talks intended to support the fight against climate change."

"DAVOS, Switzerland -- At the World Economic Forum in Davos, World Bank President Jim Yong Kim called for a price on carbon, requiring companies to disclose their climate risk exposure, and greater investment in green bonds in the fight against climate change."

"Climate change could get in the way of future Olympic Winter Games, a new study finds."

"Pope Francis is drafting an encyclical on the environment."

"The Tide manufacturer aims to cut phosphates from all its laundry soaps within two years, a move that could benefit the environment - especially in developing countries."