Greenhouse
Earth needs the energy that comes from the Sun. When heat hits the earth’s surface it bounces back up in the form of infrared heat 90 percent of this heat is then absorbed by the greenhouse gases and radiated back toward the surface. Human actions are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has made an increase in carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2. A stronger greenhouse effect will warm the oceans and melt glaciers and other ice, increasing sea level. Ocean water also will expand if it warms, contributing further to sea level rise.
The Role of Human Activity
In the United Nations Conference on Climate Change, a group of 1,300 independent scientists from around the world under the auspices of the United Nations, concluded that approximately 95 percent of human activity in the last 50 years. to warm the soil. Technological advances in our modern culture have increased carbon dioxide from 280 materials per million to 400 parts per million over the last 150 years. Soil finish is more than 95 percent of natural gas compared to greenhouse gases such as carbon dioxide, methane and nitrous oxide, the main source of exposure in many ways. the world over the last 50 years.
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