THE SCIENCE OF GLOBAL WARMING IS NOT SETTLED. "While climate change is indeed real, it is not obvious that humans have any effect. Even the U.N. Intergovernmental Panel on Climate Change (IPCC) admits this,"

https://www.academia.edu/38565253/THE_SCIENCE_OF_GLOBAL_WARMING_IS_NOT_SETTLED._While_climate_change_is_indeed_real_it_is_not_obvious_that_humans_have_any_effect._Even_the_U.N._Intergovernmental_Panel_on_Climate_Change_IPCC_admits_this_?email_work_card=view-paper