2. The Greenhouse Effect often has a negative connotation with it but without it we could not survive on Earth. Too much Greenhouse gasses are a problem, though, causing steady increases in the Earth’s temperature rather than the natural warming and cooling trends of the past.

3. Without the Greenhouse Effect, the average surface temperature of 5°C will drop, surface water will freeze, and life as we know it will not be possible. However, human industrial pollution releasing CO 2, CH 4, CO, SO 2 and other greenhouse gasses trap too much solar radiation, causing avg. surface temperature to rise -  global warming. What are some problems associated with global warming? List them!

4. This increase in temperature is causing the glaciers to recede more then they are advancing in a year; they are disappearing. This means that the water cycle’s giant store of water is disappearing. The water isn’t disappearing though so where is it going? Back into the water cycle! Instead of being stored in glaciers, the extra water is being put back into the oceans causing sea level to rise! This may not seem like a lot, but for those of you who watched An Inconvenient Truth you will know that scientists are predicting many major coastal regions will be flooded! Hypothetical Florida coastline after sea levels rise

7. Sediment core sample from a lakebed with sediments, algae, diatoms can give much evidence about climate

8. Ice core samples also give : --lots of clues about climate from the amount of gasses trapped in it --pollen trapped in ice give biological clues -- ash and sediments give geological activity clues