"The United Nations secretary general, Ban Ki-moon, is expected to announce on Wednesday that he has secured enough commitments from world leaders to ensure that the 2015 Paris climate accord will enter into legal force this year, binding the next American president, whoever it is."

"The U.S. Securities and Exchange Commission is investigating how Exxon Mobil Corp. values its assets in a world of increasing climate-change regulations, a probe that could have far-reaching consequences for the oil and gas industry."

"Controversial Trade in Services Agreement (Tisa) could make it harder for governments to favour clean energy over fossil fuels as part of efforts to keep temperature rises to 1.5C".

"A far-reaching global trade deal being negotiated in secret could threaten the goals of the Paris climate deal by making it harder for governments to favour clean energy over fossil fuels, a leak of the latest negotiating text shows.

New research "suggests that massive long-term droughts can hit the region in conjunction with cycles of ocean warming and cooling — and that if these patterns continue to hold, another megadrought could lie in the future."

"The 27 states challenging Obama’s Clean Power Plan in court say the lower emissions levels it would impose are an undue burden. But most are likely to hit them anyway."

"Canada will impose a carbon price on provinces that do not adequately regulate emissions by themselves, Environment Minister Catherine McKenna said on Sunday without giving details on how the Liberal government will do so."

"NEW YORK — Presidents and prime ministers, environmental advocates and entrepreneurs have descended on the Big Apple to help the landmark Paris climate deal take force and discuss new ways of reducing greenhouse gases."

"It’s a laundry list of climate activists’ worst nightmares."

"At least 20 countries have indicated they will join the Paris climate change agreement at a United Nations event on Sept. 21, adding to the 27 that have already done so and raising hopes the deal will enter into force by the end of 2016, U.N. officials said."