Earlier quoted context omitted.
It's because we can no longer rely on our governments to act responsibly or arrive at a solution. We now have to rely on the world's billionaires and their generosity for help.
Then hold our governments responsible. I don’t know why anyone would expect a private citizen, regardless of whether or not he happens to have more than $1 billion, to help with environmental catastrophes. In fact I’d expect them to help the least out of anyone, since they have the resources to simply escape if they face danger or scarcity.
With today's rampant lobbying and propaganda driven news, that's a bit of a moot point. When critical questions are asked of those in power, they're dismissed as asking nasty questions and saying it's fake news. The propaganda is also created to keep citizens fighting against themselves rather than those in power. It's a losing position from a citizens point of view. Either the politicians have to willfully change things themselves, or you need to play the waiting game until the country deteriorates enough until it sparks revolts like in Belarus.