From the people who brought you FactCheck (you know, for when you want to double check the validity of what politicians are saying), they now bring you SciCheck:

FactCheck.org’s SciCheck feature focuses exclusively on false and misleading scientific claims that are made by partisans to influence public policy. It was launched in January 2015 with a grant from the Stanton Foundation. The foundation was founded by the late Frank Stanton, president of CBS for 25 years, from 1946 to 1971. 

Check it out!