Earth's climate is controlled by the global balance of energy. Radiation from the Sun heats up the planet while heat energy is re-radiated into space through complex interactions of land, sea and air. The journal Nature Geoscience has just published an update about the balance that controls Earth's temperature and overall climate. Scientists conclude the global balance of energy flow within the atmosphere and at Earth's surface cannot be accurately measured using current techniques and is therefore uncertain. The current uncertainty in this net surface energy balance is an order of magnitude larger than the changes associated with greenhouse gasses. In short, previous estimates of climate change are invalid, swamped by fundamental uncertainty.
The Resilient Earth Press is happy to bring you an interesting interview with the well known economist Ed Dolan. Courtesy of Oilprice.com, Dolan gives his perspective on oil prices, the prospects for cheap energy, Russia's growing uncertainty and how the natural gas boom is hindering renewable energy efforts. We think you will find a number of thought provoking statements and ideas to ponder in the views expressed in the interview, which appears in its entirety below.
Even though the Wind Production Tax Credit (PTC) may be extended when Congress reconvenes in a post-election, lame duck session, American wind turbine manufacturers are laying off workers right and left. Estimates from the Institute for Energy Research (IER) indicate approximately 3,000 jobs have already been cut or designated to be cut soon. That number is almost 30% of the 11,000 direct manufacturing jobs in the industry. At the same time, the European Union (EU) has launched an investigation of Chinese photovoltaics exporters. Similar charges in the US led to the imposition of preliminary anti-subsidy tariffs on China in March and preliminary anti-dumping tariffs in May. Instead of bringing promised prosperity to developed nations, the green energy industry is collapsing or fleeing to the developing world.
Doug L. Hoffman's new science fiction novel, Parker's Folly, has been published in eBook format on Amazon.com. Parker's Folly is a space opera in the tradition of Heinlein and EE Doc Smith that delivers speculative science, a bit of romance and lots of action. It is the first book of the T'aafhal Inheritance trilogy that follows the adventures of Captain Jack Sutton and his crew as they discover the world shattering truth behind a war fought long ago among the stars and how things on Earth were forever changed by its outcome.
One of the main problems with the “theory” of anthropogenic global warming is its reliance on rising atmospheric CO2 levels to force a global rise in temperature. This is predicted by climate change proponents by running large, complex computer models that imperfectly simulate the physics of Earths biosphere: ocean, land and atmosphere. Central to tuning these general circulation models (GCM) is a parameter called climate sensitivity, a value that purports to capture in a single number the response of global climate to a doubling of atmospheric carbon dioxide. But it has long been known that the Earth system is constantly changing—interactions shifting and factors waxing and waning—so how can a simple linear approximation capture the response of nature? The answer is, it can not, as a new perspective article in the journal Science reports.
Should solar and wind power be subsidized? That is the question being asked by a current Wall Street Journal (WSJ) public poll. Generous funding from the federal government has led to explosive growth in US wind and solar power installations. Lost among the election year hoopla is the fact that many of those subsidies are set to expire soon unless Congress acts. Here is an opportunity for you to express your preference by voting online.
That large changes in solar radiation can affect Earth's climate is widely accepted. However, the hypothesis of solar-induced centennial to decadal climate changes, which suggests feedback mechanisms in the climate system amplifying even small solar variations, has not found acceptance among orthodox climate scientists. The climate change clique would rather place their money on greenhouse gasses—human generated CO2 in particular. It is true that satellite-based measurements of total solar irradiance show that mean variations during solar cycles do not exceed 0.2 W m−2 (~ 0.1% of the Sun's energy output). It has also been noted that relatively large variations of 5–8% in the ultraviolet (UV) frequencies can occur, though how this could change global climate remained a puzzlement—but perhaps no longer. From studying a significant climate shift 2,800 years ago, a group of scientists have concluded that large changes in solar UV radiation can, indeed, affect climate by inducing atmospheric changes.
The last interglacial period (LIG)—the Eemian—is commonly believed by scientists to have been warmer than the current Holocene interglacial. Along with that balmier climate there is evidence that sea levels were significantly higher than today. Previous studies have pegged Eemian sea levels at 4 to 6m higher than today. Recently, a new investigation raises that estimate, reporting that ancient sea levels peaked between 6.6 and 9.4 m (~20 to 30 feet). Modern day accounts of flooding in low lying coastal areas and tropical islands abound, with ominous suggestions of links to global warming. How high the oceans will rise is a topic of debate for IPCC members, the news media and assorted climate alarmists, but they are asking the wrong question. Instead, they should ask why are sea levels so low?
The IPCC is working up to releasing pieces of its next climate report, starting in 2013. This has the world's climate scientists scrambling to get their latest work included in that dubious document. Foremost among those struggling for primacy of place are the computer modelers, those who study their own created worlds instead of the natural one around them. This report promises to be more contentious than the last one (AR4) in that the modelers have been racing to incorporate the effects of aerosols, soot and other airborne particulates that had previously been give scant attention. Early results suggest that aerosols have a much greater impact on regional climate than scientists had realized and that aerosols and clouds are providing some big surprises.
It is accepted that the ancient Sun was considerably cooler than our local star is today, so much so that Earth a few billion years ago should have been a lifeless frozen ball. But scientists have also shown that the planet was not frozen—shallow seas warmer than any modern ocean abounded with microbial life. A recent study, detailed in the journal Nature, is a good example of the sometimes convoluted, even improbable reasoning is used to get a handle on earthly climates during eons long vanished. Using the fossilized impact dimples from rain drops that fell 2.7 billion years ago, researchers have calculated new limits on the density of Earth's atmosphere. This, in turn, has implications on the development of the ancient atmosphere and what role greenhouse gases may have played in warming the young Earth.
As the global warming debate increases in its intensity we find both sides deeply entrenched, hurling accusations and lies at one another in an attempt to gain the upper hand. This divide within the scientific community has left the public wondering who can be trusted to provide them with accurate information and answers.
A study commissioned by the California legislature has just reported that, in order to achieve the state's aggressive greenhouse gas (GHG) emissions reductions by 2050, the golden state will need to more than triple the percentage of electrical power it gets from nuclear energy. In the January 6, 2012, issue of the journal Science a paper outlining the report's findings was published and they may be a bit unsettling for deep green Californian ecologists. It finds that technically feasible levels of energy efficiency and decarbonizing the state's energy supply alone are not good enough. The answer? Here is a hint—electric vehicles powered by expanded nuclear energy.
The impact of solar irradiance variations on Earth’s surface climate has been debated by many in the past. Based on correlations between solar variability and meteorological changes, the Sun-climate link seems obvious but, as is often stated, correlation does not prove causation. Previously, any link was disputed because the amount of energy delivered by the Sun was deemed too small to have a significant impact. New satellite measurements indicate that variations in solar ultraviolet irradiance may be larger than previously thought, forcing a reevaluation of the impact of solar variation. A recent report in the journal Nature Geoscience claims to show just that—a link between the 11 year solar cycle and Northern Hemisphere winters.
A $3.1 million solar array at Naval Air Station Kingsville is expected to offset the base's consumption of conventional energy by 2.5 percent. This is part of the Navy's push to provide 50 percent of its energy from non-fossil fuel sources by 2020. This sound like responsible government green goodness until you take the time to look at the numbers. As pointed out by Energy Gap co-author, Allen Simmons, in a letter to the editor of the Corpus Christi Caller Times, the Navy installation of solar power is a bad deal.
No phenomenon in astronomy has been studied more closely than solar flares, gigantic eruptions on the Sun that can affect Earth's climate and even disrupt power grids. Scientists have been watching the Sun with ground based instruments and orbiting satellites for years, so it might be thought that we know a lot about such eruptions. Well think again. A new report from NASA has revealed that, like earthquakes, solar flares often have aftershocks. Moreover, the aftershocks can emit bursts of ultraviolet (UV) radiation more powerful than the original eruption. Combine this new finding with the recently uncovered linkage between fluctuating UV levels and El Niño, and the Sun-Climate connection looks stronger than ever.