目前，据估计飞机排放出的二氧化碳约占全球二氧化碳总量的2%。
At present aircraft emissions are estimated to account for about 2% of the total world CO2 emissions.
所谓的“碳预算”是指全球排放到大气中的二氧化碳总量的上限，以保证还有机会将全球变暖的增幅遏制在两摄氏度内。
The so-called carbon budget is the total amount of carbon dioxide the world can pump into the atmosphere while still having a chance of stopping short of 2 degrees of global warming.
透过二氧化碳总量管制与排放交易机制(cap - and - tradescheme)，欧盟已经限制了温室效应气体的排放，去年又为碳撷储颁布进一步的优惠诱因。
The European Union, which already restricts greenhouse-gas emissions through a cap-and-trade scheme, unveiled further incentives for CCS last year.
换句话说，互联网排放了将近3亿吨的二氧化碳——几乎与土耳其或波兰一年当中燃烧煤、石油和天然气产生的二氧化碳总量相当，或者和英国燃烧化石燃料产生的二氧化碳总量的一半相当。
Put another way, the internet releases around 300m tonnes of CO2 – as much as all the coal, oil and gas burned in Turkey or Poland in one year, or more than half of those burned in the UK.
从一些记录中可以看出，美国碳排放总量的接近20%来自农田排放的二氧化碳。
By some counts, up to 20% of U.S. carbon emissions come from the release of carbon dioxide from farmland.
让我们撇开那些胡说八道的成分不提，诚实地给予二氧化碳应有的评价，并对那些为推动某些特殊目的而诋毁碳排放的人实行总量限制。
Let's offset the nonsense, begin to give carbon some honest credit it deserves, and put a cap on those who malign it to advance special agendas.
尽管航空业排放的二氧化碳在人为导致的排放总量中只占大约2%，但此份额增长迅猛。
Although aviation accounts for only around 2% of man-made carbon-dioxide (CO2) emissions, that share is growing rapidly.
虽然奥巴马曾指望靠“二氧化碳排放总量管制和交易系统”来筹集大笔大笔的资金，但似乎国会笃定这一提案所能筹得的只是杯水车薪而已。
Congress seems determined that a proposed cap-and-trade system for carbon emissions, which Mr Obama was counting on to raise hundreds of billions of dollars, will raise only a fraction of that.
因为考虑到释放二氧化碳的代价，并且众议院在六月份通过了排污交易法案(总量管制和交易法案)，以煤为燃料将会比较昂贵，而燃烧天然气会比较便宜。
Putting a price on carbon dioxide, as the cap-and-trade bill that passed the House in June would do, would make coal more expensive to burn and gas relatively cheaper.
2006年，城市人口约占世界人口的50%，但这些城市人口却消费掉了总能源消费量的三分之二，并排放出二氧化碳，占能源消耗相关的二氧化碳排放总量的70%以上。
In 2006, about 50% of the world's population was urban, but they consumed two-thirds of the total energy used and emitted more than 70% of the energy-related carbon dioxide emissions.
雨淋的破坏致使原本储存在树木中的二氧化碳气体释放到了大气中，而且排放量占全球温室气体排放总量的20%。
Rain forest destruction, which releases the carbon dioxide stored in trees, is estimated to account for 20 percent of greenhouse gas emissions globally.
在这种情况下，2010年至2050年间，全球能源消费导致的二氧化碳排放总量累计将达到约12000亿吨，剩下约4000亿吨的指标用于非能源消费导致的温室气体排放。
In this scenario, cumulative energy-related carbon dioxide emissions between 2010 and 2050 would total about 1, 200bn tons, leaving about 400bn tons for non-energy-related greenhouse gas emissions.
世界各地的热带森林，这个额外的碳吸收池，意味着每年多吸收4.8亿吨二氧化碳——几乎是美国碳排放的总量。
Over the world's tropical forests, this extra "carbon sink" effect adds up to 4.8bn tonnes of CO2 removed each year - close to the total carbon dioxide emissions from the US.
2006年，中国13亿人排放了56亿吨二氧化碳，占全球排放总量的20%，而发达国家不到10亿人，却排放了约129亿吨，占全球排放总量的46%。
In 2006, 1.3 billion Chinese people emit 5.6 billion tons of CO2, accounting for 20% of the world's total.
各国应考虑实行全球碳税或“总量控制和排放权交易”制度，即允许各国排放一定数量的二氧化碳或将排放权出售给其他国家的制度。
Nations should instead consider a global carbon tax or a “cap and trade” system that would allow countries to emit a given amount of CO2 or sell permits to other countries.
这样，动物和植物保持着大气的平衡，二氧化碳的总量不变。
In this way, animals and plants keep the atmosphere in balance and the amount of carbon dioxide stays the same.
全球范围内，信息技术行业与航空业产生的温室气体总量相同——约占二氧化碳排放总量的2%，这有谁曾想到过？
Who would have thought that, globally, the IT industry produces about the same volumes of greenhouse gases as the world's airlines do-rough 2 percent of all CO2 emissions?
该法案旨在对全国范围的二氧化碳排放实行总量控制，并像天主教堂过去宽恕罪人那样对企业发放排放许可证。
The idea is to establish a national level of carbon dioxide emissions, and sell pollution permits to industry as the Catholic Church used to sell indulgences to sinners.
信息产业在全球产生的温室气体总量与航空业相当，约占二氧化碳总排量的百分之二，这有谁能料到呢？
Who would have thought that, globally, the IT industry produces about the same volumes of greenhouse gases as the world's airlines do-roughly 2 percent of all CO2 emissions?
有谁能想到全球信息产业所排放的温室气体竟然会和航空工业排放的一样高？约占二氧化碳排放总量的2%。
Who would have thought that, globally, the IT industry produces about the same volume of greenhouse gases as the world's airlines do-roughly 2 percent of all CO2 emissions?
的确，正如法国轮胎制造商米其林所估计，这种滚动阻力占世界二氧化碳排放总量的4%。
Indeed, Michelin, a French tyre maker, estimates that this "rolling resistance" accounts for 4% of the world's carbon-dioxide emissions.
逐步减少交通运输领域石油能源产品的使用量，对减少能源消费总量和二氧化碳排放量十分重要。
Gradually reducing the use of petroleum products in the traffic and transportation sector is very important to reducing overall energy consumption and the emission of carbon dioxide.
你的碳足迹就是在一定时间段内你的所有活动引起的二氧化碳排放总量。
Your carbon footprint is the sum of all emissions of CO2, which were induced by your activities in a given time frame.
你的碳脚印就是在必然时间段内你的一切勾当惹起的二氧化碳排放总量。
Your carbon footprint is the sum of all emissions of CO2, which were induced by your activities in a given time frame.
你的碳足迹就是在一定时间段内你的所有活动引起的二氧化碳排放总量。
Your carbon footprint is the sum of all emissions 2 of CO2, which were induced by your activities in a given time frame.
你的碳足迹就是在一定时间段内你的所有活动引起的二氧化碳排放总量。
Your carbon footprint is the sum of all emissions 2 of CO2, which were induced by your activities in a given time frame.
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