In essence, low-carbon economy is efficient usage of energy, development of clean energy and pursuit of green development.

低碳经济实际上就是有效利用能源，发展绿色能源，还有追求绿色发展。

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There are also many benefits to being a minimalist such as reducing your impact on the environment by buying less, using less and being more efficient with your energy usage.

成为一个极简主义者有很多好处，如通过买更少的东西，用更少的东西来减少你对环境的影响，能源使用的更有效。

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Elsewhere, trees grown for paper could be made amenable to much more efficient processing, reducing both energy usage and toxic chemical bleach in effluents from paper mills.

在其他一些领域，被用来造纸的树木可以被改得更加容易处理，这样一来就会减少能量消耗和造纸厂化学漂白物的排放。

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Today, three to five percent of all U.S. power usage us being drawn into data centers, which is significant enough to invite regulatory attention around the sources of energy and levels of efficient energy usage.

FORBES: The Cloud In 2012: Maturing, But With Growing Pains

The question is whether the regulatory structure of an economy as a whole allows, let alone encourages, business to make efficient decisions about energy usage and by extension emissions.

WSJ: Joseph Sternberg: All the Hot Air in China

We are one of the least efficient advanced economies when it comes to energy usage.

WHITEHOUSE: President Obama Holds a Town Hall in New Hampshire