Evidence that humans are responsible for current climate change

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  • rapid increase in greenhouse gas emssions
  • average global air temperature rise 0.8 degrees since 1880- correlates with increase in Green house gas emissions. 1000-1750 CE carbon dioxidr concerntration in atmosphere was 280 pmm 2012- 392 ppm source in IPCC
  • rate of warming has increased
  • 1980/1990s were the warmest decades in the last 400 years
  • IPCC state 11 of the last…


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