To dene that humans have an effect on the world around them and it’s climate is simple human ignorance. The earth has been here for billions of years and may continue for billions more with or without humans interference.
The question is do we want to live on a earth that is healthy and supports all life for or are we only concerned with what we can for ourselves get today. 
Economic now seems to be the driving force for the human race. Our politicians dwell on it. It is a major considered in almost all decisions and economic strength is sot after by almost all because it is viewed to give prosperity and power. This is a man made dilemma that is effecting all life on earth but only short term rewards too a very few at the expense of all others and at the negative expense of the very world we all live on.  
We must and very much need too adjust our economics to better reflect the needs of this earth and all life on it or face the ultimate challenge. Extinction!