I get closest by doing the Tobin Tax on who I can, getting SE-Asia and Latin-America doing forest protection, educating the Middle-East, doing stability cards in Middle East and Russia and China, getting my HQ in Europe, and researching renewables in NA. Around 2070, reducing/banning fossil fuels in China and North America and Europe, while promoting energy cars, and... I totally ignore the two African states, since their development does not progress fast enough in regards to emissions to have a significant effect on the temperature within the game's timeframe.
Though... I've still lost, every damn time, usually in the last or second last turn. But this is how I've gotten close.
Never start a beef with a butcher.