The Earth is being heated by the Sun every day. Almost 174,000 Terawatts of energy hits the Earth. One Terawatt is equal to one million megawatts! So the Sun is heating the Earth with 174 billion megawatts of energy! Of this, about 30% is reflected back due to the white reflectivity of the Earth which is known in science as the albedo effect. So the net energy absorbed by the Earth is 122 Terawatts.
     If so much energy is being absorbed by the Earth, it should continue to heat up and its temperature must continue to rise constantly. Within days the temp should surpass the maximum that any life could bear. All life would die and the trees whither and char.
     But this does not happen. The Earth has its own temperature stability. Why? Because, at night the Earth radiates the heat absorbed during the day into deep space. Of the 122 TW that the Earth absorbs from the Sun, it radiates 121TW back into deep space and the difference is converted into work for moving the air, the clouds and the sea currents and tides. Radiation always takes place between two bodies, the heat going out from the hotter to the cooler body. We can actually feel this cooling effect at night, but the truth is that it is happening all 24 hours. The Earth is constantly cooling by radiating out its energy into deep space. We don’t feel it during day because the effect of the Sun’s radiation is to annul the cooling and go on further to warm the Earth. Over the millions of years the Earth has achieved a balance of its temperature equating the heating by the Sun and the cooling at night.
      eMaya the expert on Climate Change, has analyzed the various aspects in simple and lucid terms. You can read how she plans to stop global warming in the book ‘eMaya’ at  www.trafford.com/08-0434