The Earth and Venus are similar in size, density, and composition and we would expect that their initial atmospheres would have been rather similar. Yet the present atmospheres of the two planets could hardly be much more different than they are. How did this come to be? The reason is thought to lie in what is termed the "Runaway Greenhouse Effect".
The Earth and Venus are similar in size, density, and composition and we would expect that their initial atmospheres would have been rather similar. Yet the present atmospheres of the two planets could hardly be much more different than they are. How did this come to be? The reason is thought to lie in what is termed the "Runaway Greenhouse Effect".
In the U.S., around twenty percent of all greenhouse gas emissions come from the vehicles we drive on a daily basis. This in effect is contributing to climate change, disease and pollution. So if you consider yourself to be environmentally conscious, then you’ve got make some changes in your driving habits. By making just a little extra effort you will be able to reduce your car’s carbon footprint.
First of all, the term carbon footprint refers to a measurement of greenhouse gases released by human activities based on the amount of carbon dioxide units that is produced. This helps scientists and government decision makers gauge how severe a particular human activity affects the environment by contributing to the so-called Greenhouse Effect. One of the major drawbacks of standard gasoline and other forms of fossil fuel is its emission of greenhouse gases. These gases are believed to have an effect on our climate, and are indisputably a major source of air pollution – something which is at the base of arguments against the continued use of fossil fuels for many purposes including the powering of internal combustion engines to run automobiles.
Greenhouse gases are those gases that soak up and give off radiation in the atmosphere, leading to the greenhouse effect, which simply means heating. The main gases involved in creating the greenhouse effect on our planet are carbon dioxide (CO2), methane, water vapor, ozone, nitrous oxide and CFCs, that is, chlorofluorocarbons. click-bank




