High carbon dioxide levels are associated with warm interglacial periods, and low levels with cold glacial periods.

高二氧化碳含量与温暖的间冰期有关，低二氧化碳含量与寒冷的冰期有关。

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Recent studies do in fact show that high carbon dioxide levels are associated with warm interglacial periods, and low levels with cold glacial periods.

最近的研究确实表明，高二氧化碳水平与温暖的间冰期有关，而低二氧化碳水平与寒冷的冰期有关。

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Recently UK researchers linked low solar activity and freezing cold winters in Europe.

最近英国科学家认为欧洲冷冬和太阳活动低有关。

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JILL MIKUCKI: "We have a lot to learn from the microbes that survive in these kinds of environments and have adapted to these cold, low-energy systems.

VOA: special.2009.06.03

Honda says the FCX is the first fuel-cell vehicle that works in extreme cold weather (as low as -20 degrees Celsius or -4 degrees Fahrenheit).

FORBES: Fueling Hope

British duo Andrew Young and Andrew Musgrave did not finish their semi-final as Young had a cold and was feeling low on energy ahead of the last leg.

BBC: Norway power to men's sprint gold

These large warm and cold, high and low sea levels are slow-developing and long-lasting, and will certainly influence global climate and weather for the coming summer and into next fall.

CNN: Western U.S. to get smoggy summer, fall