text: Greenhouse gases are another major thing in car emissions. Greenhouse gases are gases that keep or trap heat on earth to keep us from going into another ice age. A decent amount is good and is used to do its job, but when you have too much then the globe starts to increase in temperature. Antarctica, as you know, is made of ice. when ice gets to a certain temperature it starts to turn into a liquid. So when antarctica starts to melt into the sea, the general ocean level will rise, causing sea level cities, states, and countries start to flood with salty ocean water. If we cut down on gas or diesel car travels, the and greenhouse production rate would slow down and so will the rising temperature of the earth decreasing the speed of the melting arctic.