Environmentalist and visiting fellow
Mark is the author of three previous books. High Tide: News from a Warming World was published in 2004, Six Degrees: Our Future on a Hotter Planet in 2007. The God Species was published in 2011. Six Degrees was made into an hour-long documentary by NatGeo and broadcast worldwide in 2008, with voiceover by Alec Baldwin.
As a pro-science campaigner and commentor he is a frequent speaker worldwide, particularly in the US and Canada. He is on the board of the UK campaign group Sense About Science, and (though still resident in Oxford, UK) is currently visiting fellow at the Cornell Alliance for Science, based at Cornell University and funded by the Bill & Melinda Gates Foundation. He has written extensively in world media on the GMO issue as well as climate change and science in society.