First produced in a lab back in 2004, graphene is essentially a single layer of pure carbon atoms bonded together in a honeycomb lattice so thin it's actually considered two-dimensional.

石墨烯最早在2004年诞生于一个实验室，本质上是一层由纯碳原子组成的蜂窝状晶格层，薄到竟被认为是二维物质。

youdao

Richer countries must do more to cut back carbon emissions.

较富裕的国家必须作出更大的努力来减少碳排放量。

youdao

They believe that the best we can do is keep it at a reasonable level, and at present the only serious option for doing this is cutting back on our carbon emissions.

他们认为，我们所能做的最好的事情就是把它控制在一个合理的水平，而在这方面目前唯一重要的选择就是减少碳排放。

youdao

But he is hard at work. He and his team currently are trying to make algae that can change carbon dioxide back into fossil fuel.

VOA: special.2010.07.20

You have a molecule where we put the carbon in the center, and we go up like this, like this, and out the back.

你有一个分子,我们把碳放在中间，现在我们得到了。

麻省理工公开课 - 固态化学导论课程节选

In fact, if the other person is working hard, or is cutting back on their carbon emissions, you have every bit more incentive to not work hard or to keep high carbon emissions yourself.

实际上,如果其他人正在努力工作,或者正在尽量减少碳排量,你总会有想偷懒的动机,或者总是继续大量排碳

耶鲁公开课 - 博弈论课程节选

Burning ethanol reduces greenhouse gas emissions, since you're just putting carbon back into the atmosphere that was recently pulled out by the plants.

NPR: Canadian Dreams of Ethanol Distilled from Grass

The faux carbon fiber back is a little cheesy -- particularly for a device that otherwise looks fairly businesslike -- but with 7.2Mbps HSDPA, GPS, a WQVGA display, and a 5 megapixel camera on board, it's hard to argue that this device can't be competitive (put this up against the far bulkier, uglier N95, for example).

ENGADGET: LG doesn't rock the WinMo boat, launches S60-powered KT770 on the downlow

Based on these findings, Dr Jiao and his colleagues propose that AAPB, and possibly other, similar microbes, have a predominant role in pumping carbon into a pool of compounds that cannot be turned back into carbon dioxide by living creatures, thereby building up a large reservoir that keeps carbon out of the atmosphere.

ECONOMIST: Bacteria and climate change