Heidi Cullen is the Chief Climatologist for the U.S.-based non-profit news organization Climate Central, which analyzes and reports on climate science to the public. She is one of the leading women making climate science and change communication part of the mainstream media by acting as an on-air Climate Expert. Heidi also worked as the Chief Science Advisor for the popular documentary series Years of Living Dangerously, highlighting global warming and climate change. Photo credit: National Academy of Sciences/CC BY-NC-SA