If current trends continue, by the year 2010 carbon emissions in the United States will soar to a level more than one-third higher than were those in 1990, according to official projections.
So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.
来自互联网
11. 碳排放税的第三个优点就是可以增加国家税收。
A third advantage of carbon taxes is that they raise revenue.
来自互联网
12. 第三，会谈必须由专门研究如何控制碳排放转向处理许多气候变化已经不可避免的现实。
Third, talks must shift from focusing exclusively on controlling emissions to dealing with the reality that lots of climate change is inevitable.
来自互联网
13. 他定期从三种深度收集土壤样本，分析其中的有机碳。
He periodically collects soil samples at three depths and analyzes them for organic carbon.
Cutting meat production and consumption by 30 percent would help to reduce carbon emissions and improve health in the most meat-loving nations, scientists said on Wednesday.
来自互联网
15. 石油消费量相对较小的马来西亚，也在周三宣布了未来十年大幅削减碳强度的计划。
On Wednesday, Malaysia, a relatively small oil consumer, announced plans to sharply reduce its carbon intensity over the next decade.
Third, pollution from trucks and smoke covers glaciers with carbon soot so that their surfaces become darker and less reflective - causing them to melt more quickly.
This ingenious triple threat of an idea could simultaneously reduce carbon emissions, cut electricity costs and reduce light pollution, without sacrificing the safety that streetlights bring.
The good news is that a number of countries are already making real progress in addressing the three challenges of climate resiliency, reduced carbon emissions and increased agricultural productivity.
However, as Mr Lebrato and Dr Jones report in Limnology and Oceanography, when they analysed thaliacean tissues they found that the creatures were one-third carbon by weight.
来自互联网
21. 执行如下三种政策手段，力保温室气体减排达标：政策调控，碳定价，资金补贴。
GREENHOUSE-GAS emissions targets can be implemented through three sorts of policy instruments—regulation, carbon-pricing and subsidies.
