Human greed, apathy need to be addressed to deal with climate change, says Gus Speth. Agree?

American environmental lawyer Gus Speth said the root causes of climate change are not outside but inside us humans. He said our greed, apathy and selfishness are central to the problem. Self-ignorance comes before all of these and only spiritual knowledge- awareness of the self- can address that. What do you think?
(Image taken from a post on Acharya Prashant app.)