US Secretary of State John Kerry have said that the Obama administration would do everything it could to implement a global agreement to combat climate change before President-elect Donald Trump takes office. Mr Kerry told journalists at a press conference in Wellington with New Zealand Prime Minister John Key yesterday just before setting off to Marrakesh, Morocco to take part in climate talks between 200 nations. Mr Kerry declined to speculate on what Trump might do about the Paris Agreement and noted that there was sometimes a difference between campaigning and governing. <br/><br/>Donald Trump, who calls global warming a hoax and has promised to quit the Paris Agreement, was considering ways to bypass a theoretical four-year procedure for leaving the accord, according to a source on Trump's transition team.