Physics professor William Happer GS ’64 has been accused of accepting bribes to write research papers that cast doubt on the reality of climate change, however he hasdenied these allegations.

The threat posed to humanity by climate change is questionable, University physics professor William Happer GS '64 said in a talk Thursday at the physics department's monthly colloquium. Happer's ...

President Donald Trump’s declaration last month that climate change is a “serious subject” marked the completion of a yearlong shift away from his outright denial of the global threat — a shift, ...