Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways.

人类还通过给沼泽地排水、凿石劈山、修建公路和铁路等方式，改变了地球的面貌。

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Aurora-inspiring: This image shows the green beam of the Northern Lights cutting through the night sky as it tracks the curvature of the earth.

神奇的极光：这张照片显示，绿色的极光穿过夜空，随着大地的曲线弯曲。

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Therefore, in order to make our earth become better, we need to take some actions to prevent this action of cutting trees without a plan.

因此，为了使我们的地球变得更美好，我们需要采取一些措施来阻止对树木乱砍乱伐的行为。

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So why on Earth does cutting capital gains taxes, increasing the money we lend to small business, and increasing the amount that they can deduct based on their investments in new equipment, why on Earth would that fall prey to the same old tired, partisan politics unless one side was much more concerned about playing politics than it is about helping this economy along?

WHITEHOUSE: Press Briefing

This Friday ( February 27th, 2009 ), you can join "innovators, entrepreneurs, visionaries, and eco-designers" in New York City to explore some of those solutions, take a look at green gadgetry, and hear from a handful of speakers on the cutting edge of Earth-friendly electronics.

ENGADGET: Greener Gadgets 2009, this Friday in NYC

The report covers all DIVERSITAS activities including its work on the interface between science and policy making, developing cross-cutting networks, the Earth System Science Partnership, etc.

UNESCO: Social and Human Sciences