But is the carbon-neutral movement just a gimmick?

On this, environmentalists aren’t neutral, and they don’t agree. Some believe it helps build support, but others argue that these purchases don’t accomplish anything meaningful — other than giving someone a slightly better feeling (or greener reputation) after buying a 6,000-square-foot house or passing the million-mile mark in a frequent-flier program. In fact, to many environmentalists, the carbon-neutral campaign is a sign of the times — easy on the sacrifice and big on the consumerism.

As long as the use of fossil fuels keeps climbing — which is happening relentlessly around the world — the emission of greenhouse gases will keep rising. The average American, by several estimates, generates more than 20 tons of carbon dioxide or related gases a year; the average resident of the planet about 4.5 tons.

At this rate, environmentalists say, buying someone else’s squelched emissions is all but insignificant.

“The worst of the carbon-offset programs resemble the Catholic Church’s sale of indulgences back before the Reformation,” said Denis Hayes, the president of the Bullitt Foundation, an environmental grant-making group. “Instead of reducing their carbon footprints, people take private jets and stretch limos, and then think they can buy an indulgence to forgive their sins.”

“This whole game is badly in need of a modern Martin Luther,” Mr. Hayes added.

New York Times: Carbon-Neutral Is Hip, but Is It Green?

Mars is being hit by rapid climate change and it is happening so fast that the red planet could lose its southern ice cap. Scientists from Nasa say that Mars has warmed by about 0.5C since the 1970s. This is similar to the warming experienced on Earth over approximately the same period. Since there is no known life on Mars it suggests rapid changes in planetary climates could be natural phenomena.

Hmm, since there has been no ‘industrial revolution’ on Mars, at least that we know of, it doesn’t seem unreasonable to think that climate change has more to do with the giant nuclear fusion reactor at the center of our solar system than people driving SUVs. You know, Occam’s razor and all that.

The Sunday Times: Climate change hits Mars