Q&A: The physicist who has become a go-to climate adviser for dozens of poor nations

Bill Hare, a physicist and climate scientist, has become a scientific adviser for some of the nations on the front lines of climate change—poor countries with limited resources to adapt. His Berlin-based nonprofit, Climate Analytics, was established in 2008, with funding from the German government, to help provide scientific and technical advice about climate change to the poorest and most vulnerable developing countries.