Over the past few decades scientist have been observing a warming trend in the over all temperature of the earth. Although the earth has been known to go through warm and cold periods, it seems that we humans are causing the earth to heat up this time. The greenhouse effect is causing the earth to go through this warming trend that we call global warming. The greenhouse effect is caused when the infrared radiation from the sun is absorbed in atmospheric gasses such as water vapor, carbon dioxide, ozone, and methane. All of these gasses escape slowly from the atmosphere, therefore the heat stays here longer in a short of warm airy blanket. Without the occurrence of the greenhouse effect scientist say that the earths average temperature would be around 30 degrees C.
Global Warming One of the most substantial problems in the world today is global warming. This gradual warming of the earth is in occurrence at an extremely slow rate but it is happening. Introduction: The purpose of this paper is to investigate whether global warming could affect the thermohaline circulation cycle THC significantly enough that it could even shut it down and thus cause a shift in the climate of Europe severe enough to cause another Little Ice Age.
Global warming is the temperature of Earth 's surface, oceans and atmosphere going up over tens to thousands of years. Sea level is rising for two reasons. One reason is because of ice on the land, like Greenland , melting into the sea. The other reason is because of water getting bigger when it gets warmer.