Recommending or insisting on abstinence has been completely ineffective.

The most serious problem facing humankind is climate change.

I don't perceive an anti-religious agenda, especially with regard to Christians and Christianity.

The most serious problem facing humankind is climate change. All of these people breathing and burning our atmosphere has led to an extraordinarily dangerous situation. I hope next generation will emerge and produce technology, regulations, and a worldview that enable as many of us as possible to live happy healthy lives.

But as the cerebellum degrades with age, so does the quality of memories. The memories are there, but they're not as good.

The oncoming trouble I speak of is climate change. It's going to affect all of you in the same way the Second World War consumed people of my parent's generation.

I feel that I've often pointed out that there are countless aspects of life and nature that scientists and scientific thinkers cannot explain. Why the universe is accelerating in its expansion and what came before the Big Bang serve as compelling examples. The process of science provides a way to seek answers to those questions.