1.its impact is to make life as we know it,its possible on planet earth.2.but the green house effect may also bring an end to life as we know it
Life can exist on this planet. The enhanced greenhouse effect has a theory that it could cause climate change, and acid rain.
maybe the gas prices went down because of less pollutants
Depending upon the gases, they will either increase or decrease a plant's growth rate.
Mars has little to no atmosphere to hold the 'greenhouse gasses' nor a way to make them. We don't see many polluting aliens....sadly.