Andrew Revkin has spent nearly a quarter century covering subjects ranging from Hurricane Katrina and the Asian tsunami to the assault on the Amazon, from the troubled relationship of science and politics to climate change at the North Pole. He has been reporting on the environment for The New York Times since 1995, a job that has taken him to the Arctic three times in three years. In 2003, he became the first Times reporter to file stories and photos from the sea ice around the Pole. He spearheaded a three-part Times series and one-hour documentary in 2005 on the transforming Arctic. Before joining The Times, Mr. Revkin was a senior editor of Discover, a staff writer for the Los Angeles Times, and a senior writer at Science Digest. Mr. Revkin has a biology degree from Brown and a Master’s degree in journalism from Columbia. He has taught environmental reporting as an adjunct professor at Columbia’s Graduate School of Journalism. He lives in the Hudson River Valley with his wife and two sons.