Alan Robock (born 1949) is an American climatologist.
He is currently Distinguished Professor in the Department of Environmental Sciences at Rutgers University, New Jersey. He advocates nuclear disarmament and has met with Fidel Castro during a lecture trip to Cuba discuss the dangers of nuclear weapons. He is an IPCC lLead Author, and was a member of the organisation when it was awarded the Nobel Peace Prize.
Robock has researched nuclear winter, the Toba catastrophe theory, the little ice age, the effect of volcanic eruptions on climate, soil moisture, human impacts of climate change, regional atmosphere-hydrology modeling, and geoengineering.
Robock is lead author in Working Group I for the Fifth Assessment Report of the Intergovernmental Panel on Climate Change.