Quot;Ten Things You Can Do to Help Save the Earth" Going green is easier than you think.
There are little things you can do every day to help reduce greenhouse gases and make a less harmful impact on the environment. Taking care of the Earth is not just a responsibility -- it's a privilege. Live Twitts all over the world. EO Newsroom: New Images - The Top of the Atmosphere. Atmospheric gases scatter blue wavelengths of visible light more than other wavelengths, giving the Earth’s visible edge a blue halo.
At higher and higher altitudes, the atmosphere becomes so thin that it essentially ceases to exist. Gradually, the atmospheric halo fades into the blackness of space. This astronaut photograph captured on July 20, 2006, shows a nearly translucent moon emerging from behind the halo. Technically, there is no absolute dividing line between the Earth’s atmosphere and space, but for scientists studying the balance of incoming and outgoing energy on the Earth, it is conceptually useful to think of the altitude at about 100 kilometers above the Earth as the “top of the atmosphere.” The top of the atmosphere is the bottom line of Earth’s energy budget, the Grand Central Station of radiation.