The Devil visited an environmental activist and made him an offer.
"I can arrange some things for you," the devil said. "I'll get you millions of dollars in foundation grants, millions of dollars from taxpayers, millions of dollars from voluntary supporters, political influence everywhere, and all the media attention you want. All I require in return is death, disease and poverty for tens of millions of men, women and children in developing countries."
The activist thought for a moment. "What's the catch?" he asked.