But we need to be very clear: because of our decades of collective denial, no gradual, incremental options are now available to us.

We can't leave everything to the free market. In fact, climate change is, I would argue, the greatest single free-market failure. This is what happens when you don't regulate corporations and you allow them to treat the atmosphere as an open sewer.

What we have been living for three decades is frontier capitalism, with the frontier constantly shifting location from crisis to crisis, moving on as soon as the law catches up.

It is our great collective misfortune that the scientific community made its decisive diagnosis of the climate threat at the precise moment when an elite minority was enjoying more unfettered political, cultural, and intellectual power than at any point since the 1920s.

And most of all, it means continually drawing connections among these seemingly disparate struggles—asserting, for instance, that the logic that would cut pensions, food stamps, and health care before increasing taxes on the rich is the same logic that would blast the bedrock of the earth to get the last vapors of gas and the last drops of oil before making the shift to renewable energy.

It is eminently possible to have a market-based economy that requires no such brutality and demands no such ideological purity. A free market in consumer products can coexist with free public health care, with public schools, with a large segment of the economy -- like a national oil company -- held in state hands. It's equally possible to require corporations to pay decent wages, to respect the right of workers to form unions, and for governments to tax and redistribute wealth so that the sharp inequalities that mark the corporatist state are reduced. Markets need not be fundamentalist.

Despite different cultures, middle-class youth all over the world seem to live their lives as if in a parallel universe. They get up in the morning, put on their Levi's and Nikes, grab their caps and backpacks, and Sony personal CD players and head for school.