Topic - John P. Holdren

Harvard climate scientist John Holdren, who was President Obama's science advisor and whose office directed the assessments, said after the 2014 edition he visited governors, mayors and other local officials who told him how useful the 841-page report was.

Websites hosting major United States climate reports taken down →

John Holdren, who was President Barack Obama's science adviser, said he blames GOP leaders' “nonstop denial and deception.”

Americans' trust in science now deeply polarized, poll shows →