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CO2 is 0.04% of the atmosphere. That doesn't mean climate change is a 'hoax' | Fact check
USA TODAY via Yahoo Canada News· 6 months agoThe claim: Climate change is a 'hoax' because CO2 is only 0.04% of the atmosphere A Feb. 7 Instagram post (direct link, archive link) shows Rep. Doug LaMalfa of California questioning a panel ...