Andrew Revkin is a prize-winning reporter and author who has spent a quarter of a century covering subjects ranging from the assault on the Amazon to the Asian tsunami, from the troubled relationship of science and politics to climate change at the North Pole. He has reported on the environment for The New York Times since 1995, a job that has taken him to the Arctic three times since 2003. That year, he became one of the first journalists to file stories and photos from the floating sea ice around the North Pole. Throughout his career, he has focused relentlessly on the century-scale challenge of providing energy for a growing human population without overloading the atmosphere with greenhouse gases. He has written three books, ranging from the Amazon to the Arctic. His most recent is The North Pole Was Here: Puzzles and Perils at the Top of the World (Kingfisher, 2006), the first account of global and Arctic climate change written for the whole family. In October 2007, Revkin created Dot Earth, a Times blog on climate, development and the environment. The blog has built a magazine-size audience 300,000 monthly readers as of March 2008.