I wrote a trilogy of long posts on this topic very recently so I'll just link to that.

https://unop.uk/how-to-help-with-a-big-global-problem-as-a-t...

In summary, it's not somebody else's problem. It's our problem and we need to take responsibility and fix it. We already have all the core technology required to solve this and we just need to make it happen. Everyone can help, particularly the talented crowd on here.