World’s Richest Man Pledges $10 Billion to Fight Climate Change. Is that Good?

Well, it’s certainly not bad. And yet…

Let’s be clear that $10 billion is serious money. And the climate fight can use all the help it can get. But before getting too excited, there are some open issues:

Questions

1. What’s the time frame? Is the $10 billion fund established right away or over time? Will grants go out at the 5% per year minimum required by law of foundations, or go faster? ($500 million per year is not bad, but not $10 billion…