Scientists, from Nature studied 20 years of satellite data of the world's 220,000 mountain glaciers, and found that since 2015, glaciers have last 298 billion metric tons off ice and snow per year.
《自然》杂志的科学家们研究了世界上22万座高山冰川20年来的卫星数据，发现自2015年以来，冰川上每年减少的冰雪总量为2980亿公吨。
Amazon flora, for instance, holds more than 100 billion metric tons of carbon, equal to 15 years of tailpipe and smokestack emissions.
例如亚马逊的植物，持有一千亿吨的碳量，相当于重工业和排气管15年的排射量。
Atmospheric concentrations of carbon dioxide have reached 386 parts per million-and rising, because every year, human activity spews more than 30 billion metric tons of CO2.
目前大气中CO2(二氧化碳)的浓度已达百万分之386，而且还在上升。因为每年，人类活动要排放出300多亿吨CO2。
Every year about 30 billion metric tons of carbon dioxide are pumped into the Earth's atmosphere from power plants cars and other industrial sources that rely on fossil fuels.
每年，以消耗化石燃料为主的汽车、发电厂及其他工业将约300亿公吨的二氧化碳排放到地球大气层。
Every year, about 30 billion metric tons of carbon dioxide are pumped into the Earth's atmosphere from power plants, cars and other industrial sources that rely on fossil fuels.
每年，以消耗化石燃料为主的汽车、发电厂及其他工业将约300亿公吨的二氧化碳排放到地球大气层。
Already, between 2000 and 2006, the world emitted roughly 234 billion metric tons of co2-and roughly one third of the total trillion metric ton "budget" has already been spent to date.
可在2000到2006年间，全世界已经排放了约2340亿吨的CO2，这几乎占据了目前推算出的“预算”的三分之一。
Worldwide, data centers left a massive carbon footprint in 2009: 121 billion metric tons, according to a Rice University study, or about 1.6 percent of worldwide carbon emissions.
根据RiceUniversity 的研究报告，全世界的数据中心在 2009 年产生了巨大的碳足迹：12.1 亿吨，这大约占全世界碳排放总量的 1.6%。
The changes could come quickly too, with pollution down 1.5 billion metric tons by the end of the decade.
这些变化会很快来临，在这个十年结束时，排放的温室气体会下降到15亿万吨。
The changes could come quickly too, with pollution down 1.5 billion metric tons by the end of the decade.
这些变化会很快来临，在这个十年结束时，排放的温室气体会下降到15亿万吨。
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