He points out that using ethanol in place of oil reduces total carbon dioxide emissions by only 13 per cent.
他指出，利用燃料乙醇来替代石油仅仅减少了13%的二氧化碳排放。
Between 1990 and 2008, for example, European Union countries reduced total carbon emissions in their own territories by 6%.
比如，在1990年和2008年间，欧盟国家在其领土内减少了碳排放总量的6%。
Another major concern is the environmental impact of transport, which accounts for roughly 25% of total carbon dioxide emissions.
另一个主要问题就是交通对环境的影响，这约占总二氧化碳排放量的25%。
About 90 percent of the world's total carbon content has settled to the bottom of the ocean, primarily in the form of dead biomass.
全世界的碳有90％沉积在海底，主要都是通过这种方式进行的。
The total carbon footprint to produce one pound of beef was reduced by 14 percent since 1977, according to research by Washington State University.
根据华盛顿州立大学的研究，自1977年以来，生产1磅牛肉总碳足迹减少了14%。
They turn into carbon dioxide generated by non-dispersive infrared detector, which were measured in water of the total carbon (TC) and inorganic carbon (IC).
其所生成的二氧化碳依次导入非分散红外检测器，从而分别测得水中的总碳(TC)和无机碳(IC)。
The total carbon dioxide concentration increases from the surface layer to the bottom layer, and from the shelf break area to the near shore and to the outside sea.
总二氧化碳浓度自表层至底层和自陆架坡折区到近岸和外海由低变高。
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.
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。
The new US analysis suggests this may not be a sensible strategy, given that the total carbon footprint appears bigger - especially if the gas comes from shale formations.
一份新的分析指出，这样做并不是一种好的策略，指出总的碳影响变得更大--特别是如果此类其他来自于页岩层。
Were they to do as the UK proposes, cutting this total by 80% and offsetting half of it, they would have to buy reductions equal to 20% of the world's total carbon production.
如果他们按照英国的提议减少总量的80%，但只承担其中的一半，那么他们将购买相当于20%的全球碳排放量。
He noted that most of the world's total carbon emissions stem from cities and sources like buildings, transportation and waste, over which at least limited control can be exerted.
他注意到全球所有碳排放都来自于城市和建筑、交通以及废弃物等来源，对这些来源至少可以加以控制。
Dissolved inorganic carbon (DIC) account for more than 95% of total carbon in seawater, so it is necessary to make reliable and precise measurements of DIC to study Marine carbon cycling.
海水中的溶解无机碳(DIC)可占海水中总碳的95%以上，其准确测量是研究海洋碳循环的基础。
The researchers estimate that as the forest grows, it will fix 8 million tons of atmospheric carbon, equivalent to the total emissions of the planet today.
研究人员估计，长成后的丛林每年将能够固定8百万吨碳，相当于当今全球的总碳排放量。
To avoid dangerous climate change we will have to limit the total amount of carbon we inject into the atmosphere, not just the emission rate in any given year.
而我们人类为了避免气候发生这样危险的变化，就必须限制排放的温室气体总量，而不是仅仅限制排放率来延长使用期限。
Transport currently accounts for 29% of the UK's total domestic and international carbon emissions and is the only major sector in which such emissions are still rising.
运输目前占英国国内和国际总碳排放量的29％，并且也是排放量中唯一仍在上升的主要部分。
"Climate impact assessments of suborbital and orbital rockets must consider black carbon emissions, or else they ignore the most significant part of the total climate impact from rockets," Ross said.
“亚轨道和轨道火箭对气候影响的评估必须考虑黑炭的排放，或者其它他们所忽略的火箭对总体气候影响的最重要的部分，”罗斯说，“这也包括到目前为止已有的评估结果”。
Cobham's TracStar LVT has a rugged yet lightweight Carbon Fiber reflector and tripod with a total weight of less than 30 LBS (13.6 kg).
Cobham公司TracStarLVT有一个坚固而轻便的碳纤维反射器和三脚架，总重量小于30磅(13.6千克)。
And measured by the amount of carbon in their bodies-rather than total weight-jellies consume and incorporate as much prey as fishes do, acuna's team found.
acuna的团队发现，如果测量它们身体中的碳含量而不是总重量，水母和鱼类吸收和消耗的差不多。
It is not just that the statistics showing another record leap in carbon output – 30.6 gigatonnes of CO2 over 2010 – to make the highest annual total in history are grim.
数据不仅显示出碳排放量的大幅升高记录——2010年二氧化碳总排放量为306亿吨——历史最高。
Today, motor vehicles put out 900 million tonnes2 of carbon dioxide a yearabout 15 per cent of our total output.
现在，机动车每年排放9亿公吨的二氧化碳，约占二氧化碳总排放量的15%。
The cutting down of trees in the Amazon alone releases 700m tonnes of carbon dioxide into the air annually, fully half of the country's total emissions.
仅在亚马逊的树木砍伐每年就会释放7亿吨的二氧化碳，几乎占到该国总排放的一半。
Without altering the total tax burden, Mr Gore thinks America should replace taxes on employment and production with taxes on pollution, particularly carbon dioxide.
戈尔认为，在不改变整体赋税负担的情况下，美国可以将雇用和生产上的课税转到污染物上，特别是二氧化碳。
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.
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。
But because carbon prices fell last year, the market's total value was nearly the same for the past two years.
但由于去年碳价格下跌，所以过去两年市场的总价值几乎相同。
When other greenhouse gases such as methane are included, the total level in the atmosphere, known as the carbon dioxide equivalent, is closer to 440ppm.
如果把其它和二氧化碳有相同效果的温室气体，例如甲烷，也算在内的话，总含量将接近440ppm。
This is less than the total biological production in the main water column, or pelagic zone, which scientists believe to be between around 0.6 and 1.8 gigatonnes of carbon per year.
它比主水体或深海区动物产物——科学家们认为，其总数在每年约6千万到1亿8千万吨碳——的总数要少。
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.
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.
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。
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