"It would have been better had Ms. Rogers delved more deeply into another of her suggestions: instead of buying green, we simply need to buy less stuff. She seems reluctant to push this too hard because it’s a truly radical idea that flies in the face of capitalism — green or not.

“Around the world, many politicians, the conventional energy sector and manufacturers of all kinds oppose any major reduction in consumption,” Ms. Rogers writes. “If people start using less, then economies based on consumption — such as that of the United States, where buying goods and services comprises 70 percent of all economic activity — will be forced to undergo a colossal transformation.”

At first, her muted call for a new frugality sounds almost as far-fetched as a carbon tax in the United States anytime soon. But it isn’t. This is something individuals could do on their own instead of waiting for reluctant politicians to act.

If there was ever a time to ponder the long-term consequences of our spending habits, it’s in the wake of the worst economic crisis in decades, which was fueled by rampant consumer borrowing. Is it possible that we could save the planet and restore the economy at the same time?"

I don't agree with all of this but still think that buying less stuff can't hurt.