Global Warming

By Lacey Baker

Climate change is a reality. Today, our world is hotter than it has been in two thousand years, and we are experiencing faster sea level rise and more extreme weather than scientists had previously predicted. By the end of the century, if current trends continue, the global temperature will likely climb higher than at any time in the past two million years.

I believe it is an important issue in our world today because, it can cost the lives and jobs of thousands of people. along the coast's of america.

The Problem: One of the first things scientists learned is that there are several greenhouse gases responsible for warming, and humans emit them in a variety of ways. Most come from the combustion of fossil fuels in cars, factories and electricity production. The gas responsible for the most warming is carbon dioxide, also called CO2. Other contributors include methane released from landfills and agriculture (especially from the digestive systems of grazing animals), nitrous oxide from fertilizers, gases used for refrigeration and industrial processes, and the loss of forests that would otherwise store CO2.

Different greenhouse gases have very different heat-trapping abilities. Some of them can even trap more heat than CO2. A molecule of methane produces more than 20 times the warming of a molecule of CO2. Nitrous oxide is 300 times more powerful than CO2. Other gases, such as chlorofluorocarbons (which have been banned in much of the world because they also degrade the ozone layer), have heat-trapping potential thousands of times greater than CO2. But because their concentrations are much lower than CO2, none of these gases adds as much warmth to the atmosphere as CO2 does.

Here are few things that will effect the world.

Spread of Disease: As Northern countries warm, disease carrying insects migrate north, bringing plague and disease with them.

Warmer waters and more hurricanes: As the temperature of ocean rises, so will the probability of more frequent and stronger hurricanes.

Polar ice caps melting: The ice caps is a four-pronged danger. First , it will raise the seas level so high that the water will start overlapping the land.