There are a lot of people who go straight from denial to despair without pausing on the intermediate step of actually doing something about the problem.Although he said this to urge people to act on the global warming issue, I think this statement can be applied to anyone who just likes to make excuses about their lives.
I like people who are trying hard to make something happen. I like people who truly believe only hard work can get them something. That might be why I like young ruthless people. On the other hand, it always leaves me a bitter taste whenever I see people who directly go to despair from denial.
Do something if you really want it, and don't ever bullshit if you haven't tried hard enough.