We are only talking about a particular subset of Muslims who commit certain acts or defend those who do. Climate change is not a significant factor in the rise of ISIL because climate change cannot turn a man into somebody who would support what ISIL does. ISIL is like a man who beats his wife - even if he only started beating his wife after he lost his job, his boss didn’t turn him into a wife-beater by firing him; it just put him in a position where he would reveal his true colours.
radical Islamic jihadism was THE factor in the rise of ISIS (it is not ISIL, or Daesh, or other PC name).
I would like to know more about the (possible) role of the CIA in the rise of ISIS. Something tells me this is a replay of what we did in Afghanistan (backing the Taliban while the Russians occupied the country)-with the same disastrous results.