David Suzuki is a Japanese-Canadian academic, science broadcaster, and environmental activist. He is best known as host of the popular and long-running CBS Television show, The Nature of Things. He has done an enormous amount of environmental activism and co-founded the David Suzuki Foundation, which focuses on climate change, sustainability, oceans, and fishing practices. 
The following is a quote from David Suzuki: The Autobiography (pp. 391): "I have been an atheist all my adult life, although as a teenager, I desperately wanted to believe in a god."