Raman+Bajwa

**__Climate Change Affects the Natural System __** ==== Climate change is a long-term change in the distrubation of the weather patterns. Over the past hundred years there have been disastrous changes in the climate. There has been an increase of global warming over the past couple of years. We need to decrease the amount of global warming or else the ice in Greenland and Antarctica well start melting even more, and we well see a rise in sea level. Eventually everyone will be under water. There has already been a shrinking in the Arctic, and every year we see the sea level rise at about 1.8mm. ====

**__Permafrost:__ ** Temperatures are increasing and this is causing permafrost to melt. Areas that have already learned to cope with it have many new problems as of now. As permafrost melts it causes the ground to melt, and the ground then becomes less stable and starts to shift, which causes big problems for buildings, roads, airports and many other facilities. Decreasing the ground ice is also having a big impact on the ecosystems; it is shifting where forests can grow.  (Permafrost melting)

**__Ice Caps, Glaciers: __**

As the temperature increases, the oceans start to get slightly warmer and then the oceans start to expand. This causes glaciers and ice caps to melt. With ice caps and glaciers melting there is more precipitation; this means that there will be more rain than snow. The surface temperature is increasing at a rate of 2 degrees per decade, and the results, pooling of liquid water on the ice sheets. The water is absorbing the heat and this causes the ice to melt. Glaciers will absorb at least 20% heat from the sun and reflect back 80%. Glaciers are not getting enough snow so they can sustain the amount being melted and the amount that stays frozen.  (Antarctica ice cap)  (Glaciers)

**__Ice Shelves: __**

Global warming is causing the ice shelves to melt. If ice shelves melt it won’t be an effect to sea level rising because ice shelves already rest in the ocean. If the ice shelve near Antarctica melts, that will be one major factor in sea level rising. Antarctica ice sheet will reach the ocean and eventually raise sea level by 60-73 meters. This will put many places completely underwater. There is only one way to make sure that this does not happen and that is to decrease the amount of global warming. (Ice Shelve in Antarctica) [|**http://www.ecy.wa.gov/climatechange/risingsealevel_more.htm**] [|**http://www.sciencedaily.com/releases/2007/08/070808213844.htm**] [] [] <span style="font-family: 'Bell MT','serif'; font-size: 12pt; line-height: 0px; overflow: hidden;">