greenhouse effect

(n.) Soem gasses, such as Carbon DiOxide (CO2) resident in earths' atmosphere act like greenhouse glass and trap some of the heat that the sun shines on us (by creating more molescules for it to travel through, on the plus side it moves faster, not that you would notice). There are too many fo these gasses for the plantlife on earth to absorb, and so slowly the earth is heating up, and by 2030, 15 million Bangladeshis will be homless. Like you should care...