John Holdren

John Paul Holdren is an American physicist, university teacher, earth scientist, and environmentalist. Born in Sewickley in 1944, he holds a Doctor of Philosophy and speaks English. He has worked at Harvard University, the University of California, Berkeley, the Office of Science and Technology Policy, and Lawrence Livermore National Laboratory. His professional interests include physics, global change, the natural environment, and environmental policy.

Holdren is a member of the Royal Society, the National Academy of Sciences, the American Academy of Arts and Sciences, and the National Academy of Engineering. He is affiliated with the Democratic Party. His accolades include the MacArthur Fellows Program, the Volvo Environment Prize, and the Tyler Prize for Environmental Achievement. He is also recognized as a Fellow of the American Academy of Arts and Sciences.

He has authored eighteen works, including *A national mechanism to address the use of space applications and space development in Costa Rica*, *Funding the low-carbon future*, *Environmental dimensions of security*, *Explorations*, and *Twelfth Night*.