Parking your car – and riding a bike. You’d get to work and the grocery in better shape – and guilt-free if you don’t exhale.

Disconnecting air conditioners and setting thermostats to 50 degrees all winter. Swim suits and UnderArmor are excellent substitutes.

Eating all leftovers. Seattle has decreed that by 2009 single-family homes must recycle all table scraps – because their decomposition generates greenhouse gases – or have their garbage collection terminated.

Shutting down coal and gas power plants, and replacing them with new nuclear plants or forests of gargantuan wind turbines. Blanketing Connecticut with turbines could meet New York City’s electricity needs, and covering Texas and Louisiana could satisfy US needs, at least when the wind is blowing, says Rockefeller University professor Jesse Ausubel.

Closing paper mills and factories. Perhaps newly unemployed workers could find jobs in China and other developing countries, where the tough emission standards won’t apply – or in the new carbon-free economy that politicians promise will arise once climate bills are enacted.

Closing dairy and poultry farms. Producing meat accounts for 18% of all greenhouse gas emissions, so this would make both greens and PETA happy.

Adopting “sustainable green technologies,” like the treadle-powered irrigation pumps environmentalists are sending to poor countries, to replace diesel pumps. An Indian villager toiling on his eco-bicycle for three years could offset the CO2 from one jetliner full of environmentalists heading to Bali.

An appropriately green solution would be requiring that climate confabs be via video-conference – from Albania or Zambia, to discourage attendance by bureaucrats and activists. We might also insist that politicians eschew private jets and take Smart Cars to campaign and global warming rallies.

Meanwhile, China is adding the equivalent of another Germany every year to global greenhouse emissions, says climatologist Roger Pielke. Thus, if CO2 really does cause climate change, all these sacrifices might prevent global temperatures from rising 0.2 degrees.

Adapting to whatever heat, cold, floods, droughts and storms nature (or mankind) might bring seems a much saner and less costly course of action.