Schools in three US states—Louisiana, Texas, and South Dakota—have been told to teach alternatives to the scientific consensus on global warming, says Debora MacKenzie in New Scientist.
The moves appear to be allied to efforts to teach creationism in public schools. Such efforts have in the past been thwarted when courts ruled them unconstitutional, but those advocating the teaching of sound science may find it harder to fight misrepresentations concerning climate change.