Question

what is the greenhouse effect? How is it related to global warming ?

Answer 1

The greenhouse effect is the process during which radiation from the sun is trapped within the earth's atmosphere, which warms the planet. This effect occurs naturally. Since the industrial revolution, the greenhouse effect has been magnified due to greenhouse gases emitted into the atmosphere by humans.

http://www.livescience.com/37743-greenhouse-effect.html

Global warming refers to the increase in annual average temperatures across the globe. As the amount of greenhouse gases in the atmosphere increases, the planet becomes warmer and warmer on average.

http://earthobservatory.nasa.gov/Features/GlobalWarming/page2.php

Thus, as humans emit more greenhouse gases and those gases are trapped in the atmosphere, more heat is retained. This causes an average annual warming across the globe.

Answer 2

The greenhouse effect is the process that warms the earth. When the sun's energy reaches the earth's atmosphere some of it is reflected back to space and the rest is absorbed and reradiated by greenhouse gases. The cause of global warming is the increasing quantity of greenhouse gases in our atmospher