Jose Bardelas Greenhouse Effect - A Growing Problem
Greenhouse Effect - A Growing Problem
By Yvonne Mustafelli
The greenhouse effect is a simple idea. Farmers commonly use a building made of glass to grow plants during the cooler months of the year. This glass holds in the heat of the sun making the environment inside the green house optimal for plant growth. The Earth is out green house, but the upper most layer is permeable so excess heat reflected from the Earth’s surface can escape back into space.
When fossil fuels became popular, the ozone layer was intact, protecting humans and animals from harmful UV rays and the heat flow into and out of the atmosphere was perfect. Then, everything changed. Fossil fuels like coal gained quickly in popularity as the cost of heating a home, warming water and producing gasoline was minimal. Everyone could afford the amenities that were once reserved for the richest of families.
As more and more fossil fuels were burned, gasses started collected inside the atmosphere. These gasses stop the extra heat from escaping just as the glass roof and walls do in a green house. The result is called the greenhouse effect.
As the Earth warms, animal and human habitats are changing. Water temperatures are rising and polar ice caps are melting. Some scientists believe that desalination of salty water sources could spell the end of the world while others still maintain that global warming as a result of the greenhouse effect is simply natural and expected.