EnvironmentMETHANE FEVERAn undersea methane explosion may have driven the most rapid warming episode of the past 90 million yearsBy Sarah Simpson on February 1, 2000Advertisement Rights & Permissions ABOUT THE AUTHOR(S)Recent Articles by Sarah SimpsonAfghanistan: Rare Earth Elements Could Beat the Taliban [Slide Show]Afghanistan Holds Enormous Bounty of Rare Earths, MineralsAfghanistan's Buried Riches