We're not trying to reinvent the wheel; for any environmental organization to claim sole responsibility for any kind of victory is insane, because everybody attacks these problems as a group.

Around year seven or eight, you'd kill yourself when you realized Norm had to enter and you had to come up with a new beer joke.

I was going through so many changes in my life - separation with my wife, having an affair - that was all very messy and public. It felt like if I really wanted to rock my boat and make changes in my life and who I am and how I am, that would also mean moving on from Cheers.

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.

To the naked eye, our oceans are beautiful. But scientists tell us that all of the world's fisheries will collapse by 2048, unless we change how we manage them. Help protect our oceans so the next generation can also enjoy their bounty.

I feel very strongly that you can't just beat people up anymore; you have to work hand in hand and find ways to compromise, and get big business involved, because it won't happen otherwise.