Global Warming: Fantastic Four

This group began by speaking of the greenhouse effect. The sun's radiation i reflected into space, , and the earth radiates heat which is absorbed by greenhoue gases. That prevents the earth from losing too much heat. They also spoke of the Great Conveyor elt. When warm water evaporates out of the North Atlantic, then saltier water is left. If it stops flowing, catastrophe happens such as a permanent winter in the eastern coast. Temperature changes are another factor of global warming. Since 1880, average temperatures incresed 1.4 degrees Farenheit regularly. The last two decades have been the warmest. This group was overall kind of lacking energy except the last speaker.