Renee Schoof

WASHINGTON — As an evangelical Christian living in Texas, climate scientist Katharine Hayhoe found that many conservatives had questions about climate change based on things they'd heard on talk radio.  The book is a look at the scientific consensus that heat-trapping gases, mostly from the use of fossil fuels, are causing an increase in the Earth's average temperature. It explains how scientists reach their conclusions and why they rule out other possible explanations, such as the sun, volcanoes and natural cycles.