Bill Hare is a physicist and climate scientist with 30 years of experience in science, impacts and policy responses to climate change and stratospheric ozone depletion. He is a founder and CEO of Climate Analytics, which was established to synthesize and advance scientific knowledge on climate change and provide state-of-the-art solutions to global and national climate change policy challenges.

Hare was a Lead Author for the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report, for which the IPCC was awarded the Nobel Peace Prize in 2007. Hare has contributed actively to the development of the international climate regime since 1989, including the negotiation of the 1992 UN Framework Convention on Climate Change, the 1997 Kyoto Protocol and the Paris Agreement in 2015. 

Hare is a graduate of Murdoch University in Western Australia and a visiting scientist at the Potsdam Institute for Climate Impact Research.