If he wanted to enact any positive changes to the environment, on a scale appropriate to the need, it would probably take at least three to four years before his education was complete. Then he'd need to find a job and get his feet wet, as it were, within the field.
And even then, he didn't think he'd be earning enough to start a foundation or something for quite a while. It was something billionaires should do, along with global poverty and education, and though some were, there were conspicuous people at the top of the food chain who were not bothering to exert themselves to affect change.
Too busy sending cars into space...
He wanted to shake them until all their money fell out.
“Through a connection with Lethe, I have a Visa,” he said, then took a bite of his sandwich and chewed it thoroughly.