The Trump administration this week summarily dismissed more than 400 scientists and other experts who had begun to write the latest National Climate Assessment report, informing them by email that the scope of the report was being reevaluated. The report, mandated by Congress, is prepared every four years under a 1990 law. It details the latest science on climate change, and also reports on progress in addressing global warming. Scientists said they fear the Trump administration could seek to shut down the effort or enlist other authors to write a very different report that seeks to attack climate science —...