Global Warming and Skepticism About Anthropogenic Causes
De Freitas has questioned anthropogenic global warming, and the way information is received and interpreted. He has written that carbon dioxide emissions themselves may not necessarily be the source of recent increases in global temperature. In the New Zealand Herald (9 May 2006), he wrote:
"There is evidence of global warming. The climate has warmed about 0.6 °C in the past 100 years, but most of that warming occurred prior to 1940, before the post World War II industrialisation that led to an increase in carbon dioxide emissions. But warming does not confirm that carbon dioxide is causing it. Climate is always warming or cooling. There are natural variability theories of warming."
He was an editor for the journal Climate Research and was involved in the Soon and Baliunas controversy.
In 2013 De Freitas said the devastating heatwave and wildfires that ravaged New South Wales in January were not linked to climate change, and said the Earth hasn't warmed at all in a decade.
Read more about this topic: Chris De Freitas
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