It is important to remember that the ocean's resources are finite. The commitment these kids are making here today is a clear and compelling call to all of us to pay attention to our ocean.

We need to start looking at having a way of managing the whole ecosystem, because you can't pick away at it piece by piece, you have to truly start being coordinated and managing our resources as a system. We haven't gotten to that point yet.

Sharks have swum the oceans for over 400 million years, but we're threatening this critically important species for the purpose of making soup - it's sad and wasteful.

I am forever grateful for Cheers.

At the time, my 6-year-old kept thinking my character's name was "Sam Alone," which is kind of brilliant. The funny came out of Sam's sad core: the alcoholic, the sex addict, the person who thinks he's God's gift.

The environmental movement, like all political processes, reacts best to disasters. But these are very slow, very gradual disasters in the making.

The biggest danger we face is overfishing. We literally could fish out our oceans, some scientists believe, in the next 40, 50, 60 years. We are fishing out the top of the food chain, and it's pretty crucial because about 200 million people depend on fish and fishing for their livelihood, and about a billion people, mostly in poorer countries, depend on fish for their protein. So this is a big problem. Good news is, it's fixable.