Geothermal power has a lot of advantages: no CO2 emissions, renewable if used correctly and constantly available.

地热能有诸多优点：不产生二氧化碳，如果正确使用且持续可用的话地热能是可再生的。

youdao

This means the car produces no CO2 emissions directly, but whether it is emission-free overall depends on the source of the energy used to produce the hydrogen.

这意味着汽车不直接产生二氧化碳排放，但是否完全零排放取决于用来制造氢的能量原料。

youdao

The answer is no, unless technology and new techniques are used to "radically" reduce the amount of energy needed to produce goods, as well as cut CO2 emissions, says the Growth Report.

答案是否定的，除非这些国家采用技术和新工艺来大幅降低商品生产所需能源，减少二氧化碳排放量，《增长报告》指出。

youdao

The U.S. is still No. 2 worldwide in net CO2 emissions, trailing only China, and is still No. 10 per capita.

FORBES: U.S. Carbon Emissions Dip To 1994 Levels

Second, there is no real likelihood that any attempts to reduce atmospheric CO2 emissions can be expected to have any measurable climate influence.

FORBES: Cap-and-Trade Fantasies In Disneyland

"The trajectory on CO2 emissions shows very little effect of the global recession so far, and no effect that I can detect from Kyoto whatsoever, " he says.

BBC: The year in business: 2011