evidence: The causes of climate change and global warming are well-known among the international scientific community. Scientific consensus based on overwhelming evidence, beyond reasonable doubt, shows that anthropogenic greenhouse gas emissions are the main driver of current global warming, not the Sun. Elevated atmospheric carbon dioxide has multiple direct and indirect impacts on the hydrosphere and biosphere, including ocean acidification and arctic sea ice loss due to global warming which affects polar bears. [...] Soon: "What we know now is CO2 ain’t gonna cause nothing. It’s not gonna change much of the climatic system…it won’t make any difference with the polar bear population…it won’t even cause what they call ocean acidification" (minute 8:39) [...] The direct and indirect environmental impacts of high anthropogenic-CO2 emissions are not just related to temperature increases, but also other changes across different components of the Earth system. Aside from air temperature warming, climate change has been observed with the oceans getting warmer, ice sheets shrinking, glaciers retreating, snow cover decreasing, sea level rising, arctic sea ice decreasing, and extreme weather events increasing in frequency (see here for evidence provided by NASA). Soon’s specific claims that CO2 does not make any difference with the polar bear populations nor cause ocean acidification are inaccurate and explored in detail in Box 1.