Swimming has been illegal in most of D.C.’s waterways since the 1970s, largely because of contamination from the district’s aging sewer system.

A coalition of autism scientists has formed to counter RFK, Jr.’s misrepresentations of science and of autism spectrum ...

Scientific research over the past 30 years has revealed a patchwork of potential causes of autism. Most of them are genetic—the condition is between 60 and 90 percent heritable—and some involve ...