The chart below shows the Nationwide average price of gasoline over the last year (12 months) compared to the gas price in Dallas and the price in Los Angeles.You can change the time period to see anywhere from 1 month to 6 years. Simply select the time period you wish to see from the list at the top.he chart below shows the Nationwide average price of gasoline over the last year (12 months) compared to the gas price in Dallas and the price in Los Angeles.
Causes Of The Greenhouse Effect. Trace gases in the atmosphere cause the greenhouse effect by acting like a blanket on a global scale and slowing the radiation of heat back out into space.mpacts of Different Greenhouse Gases. Carbon dioxide is the largest contributor to global warming, and occurs in relatively high concentrations. On the other hand, methane occurs in low concentrations, but it has a much higher heat-trapping capacity than carbon dioxide per unit volume.
Carbon dioxide exists naturally in the atmosphere as a result of the earth's carbon cycle. It is also there as a result of man's activities in burning fossil fuels (coal, oil â¦ and natural gas), which releases long-stored carbon dioxide to add to the greenhouse gases already there.reenhouse gases are the cause of Greenhouse effect.The greenhouse gases which include CO2, Methane etc. trap the heat in the Earth's atmosphere and don't allow it to escape.