It’s not clear who will now write the Congressionally mandated National Climate Assessment — or whether it will be written at all.

The Trump administration has dismissed all the scientists and other authors working on the next authoritative look at how climate change is affecting the United States, according to an email sent to authors Monday and confirmed by CNN.

The Trump administration abruptly announced this week that it is dismissing all contributors and coauthors for the National Climate Assessment, an examination of the global climate crisis and its effects on several aspects of society that is required by law to be published by 2028.