These capture heat and gases that had previously been released into the air or burned off as waste.

那些捕获的热量和气体是以前作为废弃物排到空气或者烧掉的。

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The idea was that trapped greenhouse gases in the atmospheres of Earth and Mars might have caused temperatures to raise enough to compensate for the low heat the young Sun provided.

这个理论就是：在地球和火星的大气层里有足够的温室气体，来帮助提升温度，从而弥补了早期的太阳提供的较低的热量。

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The gases build up and trap even more heat.

气体积聚起来，吸收更多的热量。

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No-till keeps carbon in the soil and avoids the release of heat-trapping gases from motorized equipment.

VOA: special.2010.09.28

Carbon dioxide and other gases in the atmosphere trap heat from the sun.

VOA: special.2010.01.19

The European Union, for example, wants to see industrial nations--its own members included--bring emissions of CO2 and other heat-trapping gases down to 85% of what they were in 1990, and do it within the next 12 years.

CNN: Hot Air In Kyoto

Unlike incandescent bulbs, the LightSpeaker LED bulb contains no mercury or halogen gases and produces almost no heat.

ENGADGET: Klipsch LightSpeaker makes whole home audio as simple as screwing in a light bulb (hands-on)

The report by AEA technology said emissions of the gases, used in refrigeration, air-conditioning and heat pump systems, were "relatively small" at 3.9% of the total but were increasing.

BBC: Guernsey greenhouse gas decrease continues