全球变暖是什么个情况？
We're in uncharted territory: 我们处于未知领域：
A new study says the warming we've seen in the past 100 years is unprecedented when compared with the past 2,000 years.
一项新的研究表明，与过去2000年相比，我们在过去100年中看到的变暖是前所未有的。
From roughly the year "zero" to the late 1800s,warm and cool periods would happen in different parts of the world at different times because of 中国女装natural weather cycles, solar activity and volcanic eruptions.
从大约“零”年到19世纪末，由于自然天气循环、太阳活动和火山爆发，世界不同地区在不同的时间会出现暖期和冷期。
But since the late 1800s, when humans started burning fossil fuels for energy, the entire world has warmed consistently in a way that it didn't for almost all of the previous 2,000 years.
但自19世纪末人类开始燃烧化石燃料获取能源以来，整个世界一直在以一种几乎在过去2000年中都没有的方式持续变暖。
The study was published Wednesday in the peer-reviewed British journal Nature.
这项研究周三发表在同行评议的英国期刊《自然》上。
"The warming of the climate system that we've seen in the past 100 years is fundamentally different than what we've seen in the prior 1,900 years,"
“我们在过去100年中看到的气候系统变暖与我们在之前1900年看到的情况有着根本的不同。”
study co-author Nathan Steiger, a Columbia University climate scientist, told USA TODAY.
该研究的合著者、哥伦比亚大学气候科学家内森·施泰格告诉《今日美国》。
"Climate epochs of the past 2,000 years, which have been popularized with names such as the 'Little Ice Age' and the 'Medieval Warm Period,' were only regional or continental-scale phenomena.
“过去2000年的气候时期，人们普遍使用“小冰河期”和“中世纪暖期”等名称，它们只是区域或大陆范围的现象。
These cold and warm decades can be explained by natural climate variability.
这些寒冷和温暖的几十年可以用自然气候的变化来解释。
But it's only been since humans starting burning fossil fuels that the entire Earth has warmed together."
但直到人类开始燃烧化石燃料，整个地球才一起变暖。"
In fact, the study said that the fast temperature increases toward the end of the 1900s impacted over 98% of the surface of the Earth.
事实上，该研究称，在20世纪末，气温的快速上升影响了地球表面的98%。
It also said that modern climate change cannot be explained by random fluctuations, but by human-caused emissions of carbon dioxide and other greenhouse gases.
报告还说，现代气候变化不能用随机波动来解释，而是由人为排放的二氧化碳和其他温室气体造成的。
To determine the Earth's temperature from the past 2,000 years, scientists pored over nearly 700 records from trees, ice, sediment, corals, cave deposits, documentary evidence and other archives.小鸡宝宝考考你4月2日
为了确定过去2000年的地球温度，科学家们仔细研究了近700份来自树木、冰、沉积物、珊瑚、洞穴沉积物、文献证据和其他档案的记录。
"It's true that during the Little Ice Age it was generally colder across the whole world," explained study co-author Raphael Neukom of the University of Bern,
520送什么给女友最合适“的确，在小冰河时期，整个世界的天气都比较冷，”伯尔尼大学的研究合著者Raphael Neukom解释说。
"but not everywhere at the same time. The peak periods of pre-industrial warm and cold periods occurred at different times in different places."
“但并非所有地方都是同时发生的。工业化前的暖期和冷期的高峰期在不同的地方出现在不同的时间。”
Thus, the research results show the current global warming is unusual not only in magnitude, but also in terms of its geography.
因此，研究结果表明，目前的全球变暖不仅在幅度上，而且在地理上都是不寻常的。
Scott St. George, a paleoclimatologist at the University of Minnesota who was not involved in the study,
明尼苏达大学的古气候学家Scott St. George没有参与这项研究，
told Science magazine that "no matter where you go, you can't avoid the dramatic march toward warmer temperatures."
他告诉《科学》杂志，“无论你走到哪里，都无法避免气温升高的戏剧性过程。”
In a commentary that accompanied the study, St. George wrote that "the familiar maxim that the climate is always changing is certainly true.
在这项研究的一篇评论中，圣乔治写道，“气候总是在变化这句熟悉的格言当然是正确的。
But even when we push our perspective back to the earliest days of the Roman Empire, we cannot discern any event that is remotely equivalent to the warming over the past few decades.
但是，即使我们把我们的视角追溯到罗马帝国的早期，我们也无法分辨出任何与过去几十年的变暖有着天壤之别的事件。
Today's climate stands apart in its torrid global synchrony.
今天的气候在其炎热的全球同步中脱颖而出。
（从今往后，没有最热只有更热）
Uncharted territory
Push perspective back to
Paleoclimatologist
unprecedented
precedent 先例；在前的;
in torrid global synchrony 在全球同步炎热中
in sync 协调;同步
torrid areas 热带地区
In remotely equivalent to 细微相当于
Human caused emissions
Volcanic eruptions
物流成本管理Burn fossil fuels
Be fundamentally different than
Consistently in a way
Random fluctuations
Natural weather cycle
Modern climate change
Climate epochs
Climate variability
The warming of the climate system
the current global warming
fast temperature increases
Be popularized with names
Regional/ continental-scale phenomena
Peer-viewed documentary
Pre- industrial period
Sediment
Cave deposits
Maxim
梦幻西游king总March towards
Pore over
In magnitude
一般纳税人税率
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