Saturday, June 04, 2011

Rethinking Prevailing Fossil Fuel Beliefs

"Are we living at the beginning of the Age of Fossil Fuels, not its final decades? The very thought goes against everything that politicians and the educated public have been taught to believe in the past generation. According to the conventional wisdom, the U.S. and other industrial nations must undertake a rapid and expensive transition from fossil fuels to renewable energy for three reasons: The imminent depletion of fossil fuels, national security and the danger of global warming.

"What if the conventional wisdom about the energy future of America and the world has been completely wrong?

"As everyone who follows news about energy knows by now, in the last decade the technique of hydraulic fracturing or "fracking," long used in the oil industry, has evolved to permit energy companies to access reserves of previously-unrecoverable “shale gas” or unconventional natural gas. According to the U.S. Energy Information Administration, these advances mean there is at least six times as much recoverable natural gas today as there was a decade ago.

"Natural gas, which emits less carbon dioxide than coal, can be used in both electricity generation and as a fuel for automobiles.

"The implications for energy security are startling. Natural gas may be only the beginning. Fracking also permits the extraction of previously-unrecoverable “tight oil,” thereby postponing the day when the world runs out of petroleum. There is enough coal to produce energy for centuries. And governments, universities and corporations in the U.S., Canada, Japan and other countries are studying ways to obtain energy from gas hydrates, which mix methane with ice in high-density formations under the seafloor. The potential energy in gas hydrates may equal that of all other fossils, including other forms of natural gas, combined.

"If gas hydrates as well as shale gas, tight oil, oil sands and other unconventional sources can be tapped at reasonable cost, then the global energy picture looks radically different than it did only a few years ago. Suddenly it appears that there may be enough accessible hydrocarbons to power industrial civilization for centuries, if not millennia, to come.

"So much for the specter of depletion, as a reason to adopt renewable energy technologies like solar power and wind power. Whatever may be the case with Peak Oil in particular, the date of Peak Fossil Fuels has been pushed indefinitely into the future. What about national security as a reason to switch to renewable energy?

"The U.S., Canada and Mexico, it turns out, are sitting on oceans of recoverable natural gas. Shale gas is combined with recoverable oil in the Bakken "play" along the U.S.-Canadian border and the Eagle Ford play in Texas. The shale gas reserves of China turn out to be enormous, too. Other countries with now-accessible natural gas reserves, according to the U.S. government, include Australia, South Africa, Argentina, Chile, France, Poland and India.

"Because shale gas reserves are so widespread, the potential for blackmail by Middle Eastern producers and Russia will diminish over time. Unless opponents of fracking shut down gas production in Europe, a European Union with its own natural gas reserves will be far less subject to blackmail by Russia (whose state monopoly Gazprom has opportunistically echoed western Greens in warning of the dangers of fracking).

"The U.S. may become a major exporter of natural gas to China -- at least until China borrows the technology to extract its own vast gas reserves.

"Two arguments for switching to renewable energy -- the depletion of fossil fuels and national security -- are no longer plausible. What about the claim that a rapid transition to wind and solar energy is necessary, to avert catastrophic global warming?

"The scenarios with the most catastrophic outcomes of global warming are low probability outcomes -- a fact that explains why the world’s governments in practice treat reducing CO2 emissions as a low priority, despite paying lip service to it. But even if the worst outcomes were likely, the rational response would not be a conversion to wind and solar power but a massive build-out of nuclear power. Nuclear energy already provides around 13-14 percent of the world’s electricity and nearly 3 percent of global final energy consumption, while wind, solar and geothermal power combined account for less than one percent of global final energy consumption.

"(The majority of renewable energy consists of CO2-emitting biomass -- wood and dung used for fires by the world’s poor, plus crops used to make fuel; most of the remainder comes from hydropower dams denounced by Greens.)

"The disasters at Chernobyl and Fukushima have dramatized the real but limited and localized dangers of nuclear energy. While their initial costs are high, nuclear power plants generate vast amounts of cheap electricity -- and no greenhouse gases. If runaway global warming were a clear and present danger rather than a low probability, then the problems of nuclear waste disposal and occasional local disasters would be minor compared to the benefits to the climate of switching from coal to nuclear power.

"The arguments for converting the U.S. economy to wind, solar and biomass energy have collapsed. The date of depletion of fossil fuels has been pushed back into the future by centuries -- or millennia.[...]" (read full article here)