Selection of project global warming
Answers
The atmosphere conserves the heat energy of Earth because it absorbs radiation selectively.
Most of the solar radiation in clear skies is transmitted to Earth’s surface, but a large part of the outgoing terrestrial radiation is absorbed and re radiated back to the surface. This is called the greenhouse effect.
A greenhouse permits most of the short-wave solar radiation to pass through the glass roof and sides, and to be absorbed by the floor, ground or plants inside.
These objects re radiate energy at their temperatures of about 300°K, which is a higher temperature than the energy that was initially received.
The glass absorbs the energy at these wavelengths and sends part of it back into the greenhouse, causing the inside of the structure to become warmer than the outside.
The atmosphere acts similarly, transmitting and absorbing in somewhat the same way as the glass.