Wednesday, 24 April 2013

brief ideas..

As sea levels are rising yearly , raining and flooding is getting worse. In 2100 it has been predicted that the whole world will be engulfed by water . over the past century burning fossil fuleds and other human and natural activites have release an enormouse amount of heat trappin gases into the enviroment which have affected the atmosphere this has caused the earth temprture to rise this means that oceans absorb around 80 bpercentof the additional heat. The rise in sea levels are connected to three primary factors all caused by this golbal climate change:
Thermal expansion : when water heats up and expands. About  half of the past centurys rise sea level is attributable to warmer oceansoccupying more space.
Melting of glaciers and polare ice caps: large ice formations such as glaciers and the polar ice caps naturally melt back a small amount each summer. In winter snows made primarily from evaporated sea water are generally sufficient to balance out the melting . recentky higher temeratures caused by global warming have lead to a high recording in summer melting as well as diminished snowfall due to later winters and earlier springs. The imbalance results in a significant gain in evaoration for the ocean causing sea levels to rise.
Ice loss from greenland and west antarctica: with glaciers and the ice caps increased heat is causing the ice sheets that cover greenland and antartica to melt at an accelerated pace. Scientists belive meltwater form above and sea water from below is leaking from beneath greenland and west antarcticas ice sheets effectivlet oosening ices strea,s and causing them to move more quickly into the sea . higher sea temperatures are causing the ice shelves that extend out from antarctica to melt form below weaken and break off.
When sea levels rise rapidly, which have been happening over the centurt a small increase can have devasting effects on the costal habbitats. As the sea water reaches farther inland it can cause destructive erosion flooding of wetlands contamination of aquifers and agricultural soils and lost habbitats for fish, birds and plants. Hundreds of millions of people live in areas that will become increasingly vunrelable to flooding. Higher sea levels will force them to abandom their homes and relocate. Low lying islands will evantully submerge completley.
Our air is to creater a collection of water resisdant garments taking insperation from animals that have already adapted to these enviroments.

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