How much of climate change is caused by people? The newly released National Climate Assessment finds that humans are responsible for up to 123% of global warming. How is that possible? This latest #ClimateFacts video explains. SOURCE: https://www.nytimes.com/interactive/2017/08/07/climate/document-Draft-of-the-Climate-Science-Special-Report.html?_r=0 Video Rating: / 5 A video explaining the effects of greenhouse gases on our atmosphere and how