The IPCC’s third volume of its fifth assessment report focuses on how human-produced greenhouse gas emissions have changed over recent decades and discusses how future increases in global warming might be avoided. More than 400 authors and almost 900 reviewers from around the globe worked on the report.

“The high speed mitigation train needs to leave the station very soon, and all of global society needs to get on board,” said IPCC chair Rajendra Pachauri at the launch of the report in Berlin.

The