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.
A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.