If I have learned anything as a scientist it is that one should not make things complicated when a simple explanation will do. - Ivar Giæver

To me the greatest moment in an experiment is always just before I learn whether the particular idea is a good or a bad one. Thus even a failure is exciting, and most of my ideas have of course been wrong. But this time it worked!

How can you possibly measure the average temperature for the whole earth and come up with a fraction of a degree?

I am not really terribly interested in global warming. Like most physicists I don't think much about it. But in 2008 I was in a panel here about global warming and I had to learn something about it. And I spent a day or so — half a day maybe on Google, and I was horrified by what I learned.