请高手翻译一段有关 energy diets 的短文再回答几个问题

先要以＂信达雅＂为原则翻译一段短文，再回答两个问题。

这是2009 年高考福建卷阅读理解 E 篇的考题的一部分。百度不让我把整题都放上来，所以我只放了前两段。我要求翻译的只是第一段。

We already know the fastest, least expensive way to slow climate change: Use less energy. With a little effort, and not much money, most of us could reduce our energy diets by 25 percent or more—doing the Earth a favor while also helping our wallets.

Not long age. My wife, PJ, and I tried a new diet—not to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the world is bending up even faster than predicted only a few years ago, and that the consequences could be severe if we don’t keep reducing emissions（排放）of carbon dioxide（CO2）and other greenhouse gases that are trapping heat in our atmosphere.

这段文字的原文是出于美国国家地理杂志 2009 年三月份的月刋。全篇文章可以在网上看到。有点长，但是对翻译这段短文应该是有帮助的。

http://ngm.nationalgeographic.com/2009/03/energy-conservation/miller-text .

除了翻译第一段文字以外，你要回答的第一个问题是，这篇文章原来的英文题目是啥？第二个问题是阅读理解 E 篇的第二段与原文的第一段有啥不同。

不用急著回答。有问题可以问。抢著回答没用。译的好答的对才行。