By Seth Borenstein WASHINGTON (AP)—Last year’s huge drought was a freak of nature that wasn’t caused by man-made global warming, a new federal science study finds.
Scientists say the lack of moisture usually pushed up from the Gulf of Mexico was the main reason for the drought in the nation’s midsection.
Thursday’s report by dozens of scientists from five different federal agencies looked into why forecasters didn’t see the drought coming. The researchers concluded that it was so unusual and unpredictable that it couldn’t have been forecast.
“This is one of those events that comes along once every couple hundreds of years,” said lead author Martin Hoerling, a research meteorologist at the National Oceanic and Atmospheric Administration. “Climate change was not a significant part, if any, of the event.”
Researchers focused on six states - Wyoming, Kansas, Nebraska, Colorado, Missouri and Iowa - but the drought spread much farther and eventually included nearly two-thirds of the Lower 48 states. For the six states, the drought was the worst four-month period for lack of rainfall since records started being kept in 1895, Hoerling said. He said the jet stream that draws moisture north from the Gulf was stuck unusually north in Canada.
Other scientists have linked recent changes in the jet stream to shrinking Arctic sea ice, but Hoerling and study co-author Richard Seager of Columbia University said those global warming connections are not valid.
Hoerling used computer simulations to see if he could replicate the drought using man-made global warming conditions. He couldn’t. So that means it was a random event, he said.
Using similar methods, Hoerling has been able to attribute increasing droughts in the Mediterranean Sea region to climate change and found that greenhouse gases could be linked to a small portion of the 2011 Texas heat wave.
Another scientist though, blasted the report.
Kevin Trenberth, climate analysis chief at the National Center for Atmospheric Research, a federally funded university-run research center, said the report didn’t take into account the lack of snowfall in the Rockies the previous winter and how that affected overall moisture in the air. Nor did the study look at the how global warming exacerbated the high pressure system that kept the jet stream north and the rainfall away, he said.
“This was natural variability exacerbated by global warming,” Trenberth said in an email. “That is true of all such events from the Russian heat wave of 2010, to the drought and heat waves in Australia.”
(which could be easily renamed the Trenberth NCAR button)
Hoerling noted that in the past 20 years, the world is seeing more La Ninas, the occasional cooling of the central Pacific Ocean that is the flip side of El Nino. Hoerling said that factor, not part of global warming but part of a natural cycle, increases the chances of such droughts.
Some regions should see more droughts as the world warms because of greenhouse gases from the burning of fossil fuels like coal, oil and gas, he said. But the six state area is’’t expected to get an increase of droughts from global warming - unlike parts of the Southwest - Hoerling said.
by Viv Forbes
Chairman, The Carbon Sense Coalition
Politicians are continually increasing the risks of electricity blackouts with their dangerous climate policies. It is foolish in the extreme to believe that humans can change the future climate by collecting carbon taxes and covering the hills with wind turbines.
We should ask them: which is worse - gradual man-made global warming or sudden electricity blackout?
Alarmists try to scare us by claiming that man’s activities are causing global warming. Whether and when we may see new man-made warming is disputed and uncertain. If it does appear, the world will be slightly warmer, with more evaporation and rainfall; plants will grow better and colonise some areas currently too cold or too dry; fewer old people will die in winter and sea levels may continue the gradual rise we have seen since the end of the last ice age. There may even be a bit more “green” in Greenland. There is no evidence that man’s production of carbon dioxide is causing more extreme weather events. Any change caused by man will be gradual and there will be plenty of time to adapt, as humans have always done. Most people will hardly notice it.
What is certain, however, is that global warming policies are greatly increasing the chances of electricity blackouts, and here the effects can be predicted confidently - they will be sudden and severe.
Localized short-term blackouts can be caused by sudden failure of supply caused by cyclones, storms, fires, floods, accidents, equipment failure or overloading. People will cope with them. The more widespread blackouts, caused for example by network collapse or insufficient generating capacity, will have severe effects.
All modern human activities are heavily dependent on electricity. Blackouts will stop lifts, trains, traffic lights, tools, appliances, factories, mines, refineries, communications and pumps for fuel, water and sewerage. People will be trapped or stranded in trains, ports, airports, lifts, hotels, hospitals and traffic jams. ATM’s, credit cards and supermarket checkouts will not work. Cash, cheques, IOU’s and pocket calculators will be required to buy anything.
Immediately a blackout occurs, those with emergency generators, fuel or batteries will start using them.
But within a very few days, batteries will run flat, emergency fuel supplies will be exhausted, food supplies will disappear from stores and pumped water will not be available. Intensive dairies, hatcheries, piggeries and feedlots will all face critical problems in keeping their animals alive and cared for.
If the blackout is extensive and prolonged, looting will infect the big cities and then spread to country areas. People who are old, sick, incapacitated or alone will be forgotten as able-bodied people focus on feeding and protecting their own.
The real threat to humanity today is not the theoretical dangers from gradual man-made global warming. A far bigger real danger is the growing threat to reliable electricity supplies from deep-green climate policies.
The most reliable electricity supplies come from coal, gas, hydro, nuclear, geothermal or oil. Misguided politicians and uncompromising nature are conspiring to ensure that few of these will be available to generate Australia’s future electricity.
The carbon tax and renewable energy targets threaten the financial viability of using coal, gas or oil to generate electricity. Banks and investors will not risk their capital on new carbon-powered stations dependent on an unstable and polarised political environment. And the declining profitability of existing stations under the carbon tax and mandated market sharing makes it risky and uneconomic to spend money maintaining existing aging stations.
The same green zealots who plot to destroy carbon energy will also work to prevent the construction of new nuclear or hydro plants in Australia. And Australia’s geothermal resources, being generally deep and remote, are unlikely to provide significant electricity for decades.
We are thus being forced to rely on fickle breezes and peek-a-boo sunbeams to generate expensive and intermittent electricity. And it will not be economic to continue building backup gas plants that are run below capacity or sit idle, earning insufficient income as they try to fill the unpredictable production gaps in the supply of green energy. The margin of supply safety will disappear.
Therefore, if we continue to allow green zealots to dictate our electricity generation, blackouts are inevitable. Britain and Germany already face this grim prospect.
All actions have consequences. We cannot continue pouring billions of dollars of community savings down the climate-change sink-hole, without starving our essential infrastructure. We cannot keep adding taxes and political risk to traditional electricity generators without reducing new investment in real base-load generating capacity. And we cannot keep adding unstable solar and wind elements to our electricity network without adding greatly to electricity costs and the risks of network failure.
When the lights fail, and the supermarket shelves are cleaned out, we will return, at great cost and after much misery, to cheap reliable continuous electricity using coal, gas or nuclear fuels.
Gaia worshippers will find that “Earth Hour” will not be such fun when it becomes “Earth Week”
Disclosure: Viv Forbes has no vested interest in electricity generation, except as a consumer. And he gets no funds from the government Climate Change Industry. He holds shares in a small Australian coal exploration company which will benefit by exporting coal if expensive unreliable electricity in Australia forces more power-using industries overseas.
Originally published in The Washington Times.
By Steve Goreham
Exports from the Pacific Northwest are an ongoing battleground in the environmental war on coal. Last week, the Sierra Club and three other groups announced that they would file suit against Burlington Northern Santa Fe Railway and six coal companies over shipments of coal in open-topped train cars. The announcement is an escalation in the three-year battle to stop new export terminals proposed for ports in Washington and Oregon. Underlying all the rhetoric is a concern that mankind is causing dangerous global warming.
In 2010, Peabody Energy, Cloud Peak Energy, and Australia-based Ambre Energy announced competing plans to build export terminals in the Pacific Northwest to ship coal to Asia, with Arch Coal joining the fray in 2011. Five new export terminals have been proposed. Coal would be shipped by rail from the Powder River Basin coal mines in Montana and Wyoming, loaded on ships at the proposed terminals, and transported across the Pacific Ocean to meet the growing demand for coal in China and Asia. Potential coal exports to Asia are estimated at between 50 and 100 million tons annually. Environmental groups and students have mounted a growing campaign to oppose construction of the terminals and the planned coal exports
The Sierra Club and other opponents claim that rail transport of coal is responsible for “emitting coal into waterways in many locations across Washington” in the form of coal dust and that this violates the Clean Water Act. They fear that, if the export terminals are built, additional coal trains will add to the problem. “Coal is a toxic pollutant and this action today seeks to stop illegal pollution and keep our river free of dirty coal,” said Brett VandenHeuvel, Executive Director of Columbia Riverkeeper.
Shipping coal by rail and exporting coal is nothing new. In 2011, the US exported 89 million metric tons of coal, up 143 percent from 2002. Most of those exports went through the East Coast ports of Norfolk, New Orleans, and Baltimore to Europe, which is using more coal not less. Most of this coal was delivered to ports by rail and water pollution has not been a major issue.
Neither is coal dust new. In 1900, coal provided 70 percent of US energy consumption. Factories, railroads, electrical utilities, and home furnaces were powered by coal. During the 1940s and 1950s, fallen snow in Chicago was blackened with coal dust after only a few days. Homeowners washed their walls once a year to remove accumulated coal dust. But thanks to cleaner-burning coal-fired plants and our nation’s shift to natural gas and petroleum, US emissions of coal dust today are at a 50-year low.
While environmentalists complain about coal dust, the real reason they hate coal is their acceptance of the ideology Climatism, the belief that man-made greenhouse gases are destroying Earth’s climate. In 2009 Dr. James Hansen stated, “The trains carrying coal to power plants are death trains. Coal-fired power plants are factories of death.” Environmental groups believe burning coal will cause catastrophic climate change, so “coal dust” is used as an excuse to try to halt coal exports.
But there is no empirical evidence that human greenhouse gas emissions are causing dangerous global warming. Carbon dioxide is a trace gas. Only four of every 10,000 air molecules are carbon dioxide. Ninety-nine percent of Earth’s greenhouse effect is natural, caused by water vapor and natural greenhouse gas emissions from oceans and the biosphere. Global temperatures have not increased for more than ten years, despite a continued rise in atmospheric CO2, confounding the climate models. And despite the furor over Hurricane Sandy, history shows that storms, floods, and droughts today are neither more frequent nor more severe than in past centuries.
Yet, protests against coal in the Pacific Northwest continue to escalate. It seems that “yes we can” works except in the case of export terminals and pipelines
Steve Goreham is Executive Director of the Climate Science Coalition of America and author of the new book The Mad, Mad, Mad World of Climatism: Mankind and Climate Change Mania.