when did we decide that humans are adding to global warming?



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    A Swedish scientist named Svante Arrhenius first proposed that the combustion of fossil fuel could lead to global climate change in 1896, but the theory was dismissed mainly because there was no data to support it.  Most scientists believed that the ocean would absorb any excess carbon.  During the second half of the 20th century, Charles Keeling used then-modern technologies to record CO2 levels in Antarctica and discovered that they were on the rise.  Still, the idea that humans could contribute to climage change was largely dismissed.  In the 1980s, however, world temperatures began a very unusual increase, and “global warming” gained recognition and credibility, and in 1988, science officially recognized that global temperatures were on the rise, and the International Panel on Climate Change was formed.

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