Driving a car, using electric power, buying anything whose manufacture or transport consumes energy-all those activities generate greenhouse gases that contribute to climate change.

驾驶汽车、使用电能、购买任何通过耗能而生产或运输的产品，所有这些行为都产生导致气候变化的温室气体。

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As concern over climate change improves the prospects for nuclear power, uranium demand has outpaced supply and speculative buying has forced the price up to $85 per pound, from $10 in 2003.

由于人们认为气候的变化会促进核能的发展前景，现在铀已经是供不应求，而且对铀的投机性购买已使铀价格从2003年的一磅10美元涨到85美元。

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The survey says 42% of those with $100, 000 or more feel guilty buying luxury in the current economic climate.

调查发现，收入10万美元以上的人有42%觉得在当前经济环境下买奢侈品有负疚感。

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In an uncertain buying climate, Dunn says, consumers still spend on casual clothes and underwear.

FORBES: Well-Tailored

That spells disaster in a market climate where B2B buying is social, transparent and trust-based.

FORBES: How Madmen Lost their Mojo

For those worried about climate change, Brazilian ethanol is worth buying only if it is as green as it claims to be.

ECONOMIST: Biofuels in Brazil