I, too, was once in that activist camp. A lifelong environmentalist, I opposed genetically modified foods in the past. Fifteen years ago, I even participated in vandalizing field trials in Britain. Then I changed my mind.

After writing two books on the science of climate change, I decided I could no longer continue taking a pro-science position on global warming and an anti-science position on G.M.O.s.

There is an equivalent level of scientific consensus on both issues, I realized, that climate change is real and genetically modified foods are safe. I could not defend the expert consensus on one issue while opposing it on the other.  Read more of this New York Times articles written on April 24, 2015 by Mark Lynas, a former antiGMO activist.