Naomi Oreskes, The Nation, July 28, 2014
Albert Einstein is rumored to have said that one cannot solve a problem with the same thinking that led to it. Yet this is precisely what we are now trying to do with climate change policy. The Obama administration, the Environmental Protection Agency, many environmental groups and the oil and gas industry  all tell us that the way to solve the problem created by fossil fuels is with more fossils fuels. We can do this, they claim, by using more natural gas, which is touted as a “clean” fuel—even a “green” fuel  .
Like most misleading arguments, this one starts from a kernel of truth.
That truth is basic chemistry: when you burn natural gas, the amount of carbon dioxide (CO2) produced is, other things being equal, much less than when you burn an equivalent amount of coal or oil . It can be as much as 50 percent less compared with coal, and 20 percent to 30 percent less compared with diesel fuel, gasoline or home heating oil. When it comes to a greenhouse gas (GHG) heading for the atmosphere, that’s a substantial difference. It means that if you replace oil or coal with gas without otherwise increasing your energy usage, you can significantly reduce your short-term carbon footprint. Continuar lendo