The aim of global paleoclimatic research is to reveal the natural process of past climate change, probe its mechanisms and forecast the trend of human environment in the future.
全球古气候研究目的是为了揭示过去气候变化的自然历程，探求其形成机制，预测未来人类环境走向。
We can see past occurrences of climate change that took place over just a few hundred years.
我们可以看到过去几百年里发生的气候变化。
Over the past decade, the focus has been on climate change—how the warming of the Earth from greenhouse gases is leading to conditions that worsen fires.
在过去的十年里，人们关注的焦点一直是气候变化，即温室气体导致的地球变暖是如何导致火灾恶化的。
In fact, the pattern of climate change in the past reveals that Earth's climate will almost certainly go through dramatic changes in the future even without the influence of human activity.
事实上，过去的气候变化模式表明，即使没有人类活动的影响，地球的气候几乎肯定会在未来经历剧烈的变化。
We have had huge climate change in the past and to think the very slight variations we measure today are the result of our life - we really have to put ice blocks in our drinks.
然而过去有如此巨大的气候变化，而今天我们所衡量的我们生活造成的变化相形之下非常微弱，想到这点，我们大可在饮料里加上冰块。
However, it is now ever more possible for studies of climate change to look at the past, not the future.
但是，越发可能的是现在的气候变化研究参照的是过去而不是未来。
Over the past year things have been looking up for the effort to avert serious climate change.
在过去的一年里各国做出诸多努力缓解严重的气候变化问题，情况有所好转。
That climate change has not yet done very much harm may be cheering, but the past offers no firm guarantees for the future.
气候和变化迄今为止还没有造成非常大的损害，这也许是件令人高兴的事，但是过去并不对未来提供可靠的保证。
The number of yellow fever cases has increased over the past two decades due to declining population immunity to infection, deforestation, urbanization, population movements and climate change.
在过去二十年中，由于人群对疾病感染的免疫力下降、砍伐森林、城市化、人口流动和气候变化等因素的影响，黄热病病例数呈增加趋势。
The Earth's largest lakes have warmed up over the past 25 years in response to climate change, NASA said Tuesday, announcing the first such global study of its kind.
NASA于本周二首次公布了全球的此项研究，受气候变化影响，在过去25年里地球上最大的湖泊的温度已经上升。
Even in the past two years the EU has agreed on a seven-year budget and set out ambitious plans for an energy policy and for tackling climate change.
甚至在过去的两年里，欧盟已经在一项长达七年之久的预算上达成了一致意见，并且将为一项能源政策以及解决气候变化开始制定艰巨的计划。
Another study under way at the Pew Centre on Global Climate Change, another think-tank, sizes up a $15 carbon price using data on the past effects of rising energy prices on industry.
皮尤全球气候变化中心（另一个智囊机构）正在进行另一份研究，这份研究利用能源价格上升对各行业的影响，把碳价格估计定在15美元每吨。
Climate change is overwhelming the social and other arrangements that in the past allowed countries and people to cope with floods.
气候变暖已经压倒了以前供国家和人民对付洪水的社会计划和其他安排。
Knowing that sea levels have varied by more than 100 metres in the past, as ice-sheets have melted and re-formed, lends a certain weight to the argument that serious climate change is best avoided.
伴随着冰盖的融化和生成，海平面在过去变动了100多米———这有力地支持了我们应竭力避免恶劣气候变化的观点。
For the past 400, 000 years, changes in atmospheric N2O appear to have roughly paralleled changes in carbon dioxide CO2and have had modest impacts on climate, but this may change.
过去40万年，大气中一氧化二氮的变化似乎与二氧化碳大致并行，对气候的影响不大，但这可能会改变。
Scientists are studying past changes in sea level in order to make accurate future predictions of the consequence of climate change, and they are looking down to Earth's core to do so.
为了准确预测未来气候变化的结果，科学家正在研究过去海平面的变化，他们准备通过观察地核来进行这项研究。
Climate change is threatening many Arctic animals in Finland. The researchers say that rising temperatures in the past ten years have pushed many animals to the brink of extinction.
在芬兰，气候变化正威胁著许多北极动物，研究专家说，温度上升在过去十年，逼迫许多动物濒临绝种边缘。
In the past year, the debate on climate change has changed in character.
过去一年里，气候变化辩论的性质已发生变化。
In fact the pattern of climate change in the past reveals that Earth's climate will almost certainly go through dramatic changes in the future — even without the influence of human activity.
事实上，这种以往的气候变化的模式表明，未来地球气候还是会发生巨大的改变——即使没有人类活动的影响。
In fact, the pattern or climate change in the past reveals that Earth's climate will almost certainly go through dramatic changes in the future-even without the influence of human activity.
实际上，过去的气候变化揭示了地球的气候在将来会有很大的变化，这种变化不受人类活动的影响。
In the past, China has tended to play a secondary role in issues such as climate change while the US was coming under criticism for its attitude to global warming.
以往，在美国应对全球变暖的态度饱受批评时，中国倾向于在类似解决气候变化这样的问题中扮演次要角色。
And we compare models' past climate with the observed climate, not just in terms of temperature, but in terms of the physical processes that for climate change - like cloud feedbacks, for example.
我们把模型提前预测好的天气和实际观测的天气的情况对比，限于温度，还有那些对气候变化至关重要的物理过程，比如云反馈作用。
So my question is: Why can't species simply adapt to these changes? I mean, they've had to adapt to climate change in the past.
因此我的问题是：为什么物种不能简简单单地就适应这些变化呢？我的意思是它们过去已经不得不去适应气候变化。
I mean, they've had to adapt to climate change in the past.
我的意思是在过去的气候变化中，它们已经适应了。
Ebinur lake which is located in Xinjiang as a typical plain area lake has shown a dynamic change in the past 50 years due to the double impacts (the basin climate and human disturbance).
艾比湖是新疆典型的平原区湖泊，在流域气候和人类扰动双重影响下，近50年来艾比湖湖面呈现出动态变化的态势。
The past survives here and speaks from the sand, rock, heat, and dry winds. It whispers to us about a history of repeated jolts of climate change and of the advance and retreat of humanity.
过去的一切保存在这里，在沙海、石漠、热浪和干风里诉说，向我们低语着气候变化的反复冲击以及人类退却和挺进的历史。
The past survives here and speaks from the sand, rock, heat, and dry winds. It whispers to us about a history of repeated jolts of climate change and of the advance and retreat of humanity.
过去的一切保存在这里，在沙海、石漠、热浪和干风里诉说，向我们低语着气候变化的反复冲击以及人类退却和挺进的历史。
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