“When thinking about the future, it is fashionable to be pessimistic. Yet the evidence unequivocally belies such pessimism. Over th...”

“In the rich world, the environmental situation has improved dramatically. In the United States, the most important environmental i...”

“I tentatively believe in a god. I was brought up in a fairly religious home. I think the world is compatible with reincarnation, k...”

“Money spent on carbon cuts is money we can't use for effective investments in food aid, micronutrients, HIV/AIDS prevention, healt...”