We have been discussing the effects of greenhouse gases for quite a long time. Scientists are up with their arms to hunt reasons behind its rapid increase and to combat it. It has been creating havoc and forecasting alarms. It is just within next half a century, the earth will be witnessing a series of natural cataclysms. But, what are Greenhouse gases? How exactly does it occur? Here is a piece of information to give you a basic understanding of the phenomenon. Find out what Larry West, the Meeman Award Winner for national environmental reporting, has to preach on what greenhouse gases actually are!