The UN’s volunteer science body, the Intergovernmental Panel on Climate Change, is set to release a report on Monday updating the latest knowledge on climate science. The last version of this report was published in 2013, eons in climate science, and the updated version is expected to include a clearer (and more dire) picture of just how much more carbon we can emit before crossing the threshold of 1.5-2 degrees Celsius of warming. These reports have paved the way for the Paris Agreement, global “net zero” targets and the rise of 1.5 degrees Celsius as a global goal. But action hasn’t moved as fast as science dictates. The World’s Carolyn Beeler has a preview of the report.