A team of international scientists have stated that the level of carbon dioxide in the atmosphere is at a dangerous level. The level is reportedly high enough to cause perilous changes to the climate. According to CNN, other negative side effects of the high concentration of CO2 are: "Expanding desertification, food shortages, increased storm intensities, loss of coral reefs and the disappearance of mountain glaciers that supply water to hundreds of millions of people."
Scientists are urging that we reduce CO2 and other greenhouse gas emissions, or suffer the consequences. Some are suggesting reforestation, and the use of natural fertilizers to reduce the high levels.