People opposed to action on global warming use three arguments most often: global warming is not caused by human activities, reducing CO2 will slow economic growth and really it's just an excuse for eco-liberals to create a neo-fascist nanny state to run everyone's life in an irritating and politically correct fashion.

There isn't much I can add to the debate on the first issue, but let's talk about the other two, with the help of the graph above which I found at the Canadian Green Party website.

We'll see that reducing CO2 by increasing energy efficiency improves the economy and that 'nanny' laws work when the free market doesn't.

That blue line going down shows the dramatic improvement in the energy efficiency of refrigerators in the US since 1973. That pinkish line rising tells an opposite story -- of the dramatic rise in standby power over the same period.

Together they tell a couple stories: one about vampires, the other about nannies.

You've heard about Al Gore's challenge to remodel the U.S. electrical industry in 10 years to eliminate all CO2 emissions. Some commentators say the job is too big, some say it isn't, but everyone, including Al, agrees it's a big, big job.

But exactly how big? What are we up against here? How much new wind, solar, geothermal power do we need to replace the CO2 producing plants? What else might be needed to make such a system work?

Hurricane Katrina will see its third anniversary on August 29th, a cataclysm whose meaning has yet to inform the national politics of present-day America. But a new report released last month and a documentary film going national this month just might help transform that.

The report and the film are highlighting issues of environmental justice, economic opportunity, and racial equality and they are bumping right into a counter-effort the denialist machine has launched -- a fear-mongering campaign aimed at scaring the poor and minorities about higher energy prices.

It's the naked truth about Katrina and climate and race in America versus a cynical and nauseating brand of ugly politics orchestrated by the fossil lobby whose message was something like this: "Climate action is nothing less than a war on the poor."

And so, as the race issue briefly erupted front and center in the presidential campaign last week, with McCain accusing Obama of playing the "race card", it also emerged in the climate debate at the same time. Curious.

The good news is that in this nation of rampant visual consumption, the argument may just start and end with the film, called Trouble the Water.

Hunter Lovins is one of the country’s premier prophets of the post-carbon economy and the vast new markets and investment opportunities that are opening worldwide for clean technologies. “Those who recognize this opportunity will be the first to the future and the billionaires of tomorrow,” Hunter says.

The good news: The race already has begun. It’s producing some new billionaires and attracting some old ones.

The first recorded solar billionaire was identified by the Wall Street Journal in October 2006. He is Shi Zhengrong, founder of Suntech Power Holdings Company in China. Since then, at least two other solar entrepreneurs have joined the club: Frank Asbeck, who founded Germany’s Solar World, and Xiao Peng, head of LDK Solar in China.

Joining them are two American tycoons who have decided that while their past was in oil, their future – and America’s – will be found in renewable energy. Everyone now knows about T. Boone Pickens’ commitment to build the world’s largest wind farm in Texas, and his commitment to spend $58 million of his own money on television commercials to persuade Americans that we can’t drill out way out of the energy crisis.

Pickens has been traveling around the Great Plains states lately to make the case for wind power and, judging by the photo, he’s committing so much of his disposable fortune to renewable energy that he can’t afford Powerpoint.

Barack Obama unveiled his energy plan in Lansing today, the capital of the state of Michigan, primary home of the US auto industry.

There are two elements in particular of Obama's energy plan that deserve special attention for the healing touch they apply: to combat vets returning from Iraq and Afghanistan, and to the ailing US auto industry.

And lord knows they -- and this nation -- need a healing touch.