Glacial pace is actually an incorrect concept. The glaciers move a lot faster and they react a lot faster than people imagine.

This air we breathe is precious, and the glaciers helped me understand that and stay focused on that.

We are now beyond nature's normal variation in terms of how the atmosphere is composed. Nature did something for a million years. It actually goes back a lot further than that, but the ice core records show a million years. So, nature has this normal oscillation within this zone, and all of a sudden, we're forty percent outside that zone.

It's actually slower, but it's getting faster. I can't imagine a better field to play on.

A lot of people get impatient with the pace of change.

Apple is moving faster than ever and we expect them to move at an even faster pace next year.