The article advances a new theory to explain changes in the climate.

这篇文章提出了一个解释气候变化的新理论。

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Now let's look at another theory, an alternative to the hunting theory, the climate change theory.

现在我们来看看另一种理论，狩猎理论的替换，气候变化理论。

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He appears to have forgotten that he had just been given 90 minutes of prime time television to expound his theory that climate change is a great green conspiracy.

他似乎忘了，他刚刚得到90分钟的电视黄金时间来阐述他的理论，即气候变化是一个巨大的绿色阴谋。

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Christopher Horner, a senior fellow at the Competitive Enterprise Institute has sought NASA GISS records through the FOIA for three years, including documents related to human-caused global climate crisis theory promotions undertaken by federal employees such as those of Gavin Schmidt, a principal blogger with the aggressively global warming activist RealClimate.org website.

FORBES: NASA's Inconvenient Ruse: The Goddard Institute For Space Studies

In theory, climate models should help tease out which of these indirect effects is playing the biggest role, and also say how much of the decline in ice cover can be assigned to natural variability and how much to feedback loops in which a little warming leads to a lot more.

ECONOMIST: Summer ice in the Arctic Ocean is vanishing rapidly

But the AGW theory is based upon climate models that cannot duplicate the past or present.

FORBES: Intl. Energy Agency: Transforming Electrical Generation is Key to Fighting Climate Change