An experiment in Switzerland that some fear could create an earth-swallowing black hole, begins.
Biography
Science correspondent Tom Clarke's beat ranges from bird flu to climate change. He joined Channel 4 News in 2003 as science reporter and is now one of our science correspondents.
He started out as a scientist, studying insects in the cotton fields of the American deep south.
Tom trained in journalism in New York, working as a science reporter and producer for American National Public Radio and for ABC television's affilliate network.
Tom returned to his native England in 2000 to work as a reporter for the science magazine Nature, before joining Channel 4 News in December 2003.
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Tom Clarke
