why are greenhouse gases important to life on earth
The greenhouse effect keeps the earth warm enough for life.  It does this by trapping some of the sun's heat as it radiates back  out from the surface of the earth. This has â¦ been happening for  millions of years and is completely natural.o this  natural greenhouse effect is very useful.    The gases that keep the earth warm are called greenhouse  gases. The most important gas, causing about 75% of the  natural greenhouse effect, is water vapor.