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.
Greenhouse gases absorb reflected sun energy, making the Earth's atmosphere warmer. A lot of the sunâs energy reaches the ground directly, and a portion is reflected by the ground back into space.Some gases, when present in the atmosphere, absorb that reflected energy and redirect it back to Earth as heat.The gases responsible for this are called greenhouse gases, as they play a similar role as the clear plastic or glass covering a greenhouse.arbon dioxide is the most important greenhouse gas. It is produced from the use of fossil fuels to generate electricity (for example, coal-fired power plants) and to power vehicles. The cement manufacturing process produces a lot of carbon dioxide.