There is no scientific evidence that human activity is causing the planet to warm, according to Greenpeace co-founder Patrick Moore, who testified in front of a Senate committee on Tuesday.
Moore argued that the current argument that the burning of fossil fuels is driving global warming over the past century lacks scientific evidence.
“The fact that we had both higher temperatures and an ice age at a time when CO2 emissions were 10 times higher than they are today fundamentally contradicts the certainty that human-caused CO2 emissions are the main cause of global warming,” Moore said.
“When modern life evolved over 500 million years ago, CO2 was more than 10 times higher than today, yet life flourished at this time,” he added. “Then an Ice Age occurred 450 million years ago when CO2 was 10 times higher than today.”
Moore, a Canadian, helped found the environmental activist group Greenpeace in the 1970s. He left the group after they began to take on more radical positions. He has since been a critic of radical environmentalism and heads up the group Ecosense Environmental in Vancouver, Canada.