Showing posts with label Global Warming. Show all posts
Showing posts with label Global Warming. Show all posts

Monday, January 12, 2009

The Coming Ice Age

The earth is now on the brink of entering another Ice Age, according to a large and compelling body of evidence from within the field of climate science. Many sources of data which provide our knowledge base of long-term climate change indicate that the warm, twelve thousand year-long Holocene period will rather soon be coming to an end, and then the earth will return to Ice Age conditions for the next 100,000 years.

Ice cores, ocean sediment cores, the geologic record, and studies of ancient plant and animal populations all demonstrate a regular cyclic pattern of Ice Age glacial maximums which each last about 100,000 years, separated by intervening warm interglacials, each lasting about 12,000 years.
Most of the long-term climate data collected from various sources also shows a strong correlation with the three astronomical cycles which are together known as the Milankovich cycles. The three Milankovich cycles include the tilt of the earth, which varies over a 41,000 year period; the shape of the earth’s orbit, which changes over a period of 100,000 years; and the Precession of the Equinoxes, also known as the earth’s ‘wobble’, which gradually rotates the direction of the earth’s axis over a period of 26,000 years. According to the Milankovich theory of Ice Age causation, these three astronomical cycles, each of which effects the amount of solar radiation which reaches the earth, act together to produce the cycle of cold Ice Age maximums and warm interglacials.

Elements of the astronomical theory of Ice Age causation were first presented by the French mathematician Joseph Adhemar in 1842, it was developed further by the English prodigy Joseph Croll in 1875, and the theory was established in its present form by the Serbian mathematician Milutin Milankovich in the 1920s and 30s. In 1976 the prestigious journal “Science” published a landmark paper by John Imbrie, James Hays, and Nicholas Shackleton entitled “Variations in the Earth's orbit: Pacemaker of the Ice Ages,” which described the correlation which the trio of scientist/authors had found between the climate data obtained from ocean sediment cores and the patterns of the astronomical Milankovich cycles. Since the late 1970s, the Milankovich theory has remained the predominant theory to account for Ice Age causation among climate scientists, and hence the Milankovich theory is always described in textbooks of climatology and in encyclopaedia articles about the Ice Ages.

In their 1976 paper Imbrie, Hays, and Shackleton wrote that their own climate forecasts, which were based on sea-sediment cores and the Milankovich cycles, "… must be qualified in two ways. First, they apply only to the natural component of future climatic trends - and not to anthropogenic effects such as those due to the burning of fossil fuels. Second, they describe only the long-term trends, because they are linked to orbital variations with periods of 20,000 years and longer. Climatic oscillations at higher frequencies are not predicted... the results indicate that the long-term trend over the next 20,000 years is towards extensive Northern Hemisphere glaciation and cooler climate."

During the 1970s the famous American astronomer Carl Sagan and other scientists began promoting the theory that ‘greenhouse gasses’ such as carbon dioxide, or CO2, produced by human industries could lead to catastrophic global warming. Since the 1970s the theory of ‘anthropogenic global warming’ (AGW) has gradually become accepted
as fact by most of the academic establishment, and their acceptance of AGW has inspired a global movement to encourage governments to make pivotal changes to prevent the worsening of AGW.
The central piece of evidence that is cited in support of the AGW theory is the famous ‘hockey stick’ graph which was presented by Al Gore in his 2006 film “An Inconvenient Truth.” The ‘hockey stick’ graph shows an acute upward spike in global temperatures which began during the 1970s and continued through the winter of 2006/07. However, this warming trend was interrupted when the winter of 2007/8 delivered the deepest snow cover to the Northern Hemisphere since 1966 and the coldest temperatures since 2001. It now appears that the current Northern Hemisphere winter of 2008/09 will probably equal or surpass the winter of 2007/08 for both snow depth and cold temperatures.
The main flaw in the AGW theory is that its proponents focus on evidence from only the past one thousand years at most, while ignoring the evidence from the past million years -- evidence which is essential for a true understanding of climatology. The data from paleoclimatology provides us with an alternative and more credible explanation for the recent global temperature spike, based on the natural cycle of Ice Age maximums and interglacials.
In 1999 the British journal “Nature” published the results of data derived from glacial ice cores collected at the Russia ’s Vostok station in Antarctica during the 1990s. The Vostok ice core data includes a record of global atmospheric temperatures, atmospheric CO2 and other greenhouse gases, and airborne particulates starting from 420,000 years ago and continuing through history up to our present time.

Monday, January 5, 2009

Global Ice Levels The Same As 1979

Rapid growth spurt leaves amount of ice at levels seen 29 years ago.

Thanks to a rapid rebound in recent months, global sea ice levels now equal those seen 29 years ago, when the year 1979 also drew to a close.
Ice levels had been tracking lower throughout much of 2008, but rapidly recovered in the last quarter. In fact, the rate of increase from September onward is the fastest rate of change on record, either upwards or downwards.
The data is being reported by the University of Illinois's Arctic Climate Research Center, and is derived from satellite observations of the Northern and Southern hemisphere polar regions.
Each year, millions of square kilometers of sea ice melt and refreeze. However, the mean ice anomaly -- defined as the seasonally-adjusted difference between the current value and the average from 1979-2000, varies much more slowly. That anomaly now stands at just under zero, a value identical to one recorded at the end of 1979, the year satellite record-keeping began.
Sea ice is floating and, unlike the massive ice sheets anchored to bedrock in Greenland and Antarctica, doesn't affect ocean levels. However, due to its transient nature, sea ice responds much faster to changes in temperature or precipitation and is therefore a useful barometer of changing conditions.
Earlier this year, predictions were rife that the North Pole could melt entirely in 2008. Instead, the Arctic ice saw a substantial recovery. Bill Chapman, a researcher with the UIUC's Arctic Center, tells DailyTech this was due in part to colder temperatures in the region. Chapman says wind patterns have also been weaker this year. Strong winds can slow ice formation as well as forcing ice into warmer waters where it will melt.
Why were predictions so wrong? Researchers had expected the newer sea ice, which is thinner, to be less resilient and melt easier. Instead, the thinner ice had less snow cover to insulate it from the bitterly cold air, and therefore grew much faster than expected, according to the National Snow and Ice Data Center.
In May, concerns over disappearing sea ice led the U.S. to officially list the polar bear a threatened species, over objections from experts who claimed the animal's numbers were increasing.

Wednesday, June 4, 2008

Cap And Trade Fiasco

Cap-And-Trade: A Devious Tax Plan
June 2, 2008

An unprecedentedly radical government grab for control of the American economy will be debated this week when the Senate considers saving the planet by means of a cap-and-trade system to ration carbon emissions. The plan is co-authored (with John Warner) by Joe Lieberman, an ardent supporter of John McCain, who supports Lieberman's legislation and recently spoke about "the central facts of rising temperatures, rising waters and all the endless troubles that global warming will bring."Speaking of endless troubles, "cap-and-trade" comes cloaked in reassuring rhetoric about the government merely creating a market, but government actually would create a scarcity so government could sell what it has made scarce. The Wall Street Journal underestimates cap-and-trade's perniciousness when it says the scheme would create a new right ("allowances") to produce carbon dioxide and would put a price on the right. Actually, because freedom is the silence of the law, that right has always existed in the absence of prohibitions. Businesses with unused emission allowances could sell their surpluses to businesses that exceed their allowances. The more expensive and constraining the allowances, the more money government would gain. If carbon emissions are the planetary menace that the political class suddenly says they are, why not a straightforward tax on fossil fuels based on each fuel's carbon content? This would have none of the enormous administrative costs of the baroque cap-and-trade regime. So a carbon tax would be a clear and candid incentive to adopt energy-saving and carbon-minimizing technologies. That is the problem.

A carbon tax would be too clear and candid for political comfort. It would clearly be what cap-and-trade deviously is, a tax, but one with a known cost. Therefore, taxpayers would demand a commensurate reduction of other taxes. Cap-and-trade — government auctioning permits for businesses to continue to do business — is a huge tax hidden in a bureaucratic labyrinth of opaque permit transactions.The proper price of permits for carbon emissions should reflect the future warming costs of current emissions. That is bound to be a guess based on computer models built on guesses. Lieberman guesses that the market value of all permits would be "about $7 trillion by 2050." Will that staggering sum pay for a $7 trillion reduction of other taxes? Not exactly. It would go to a Climate Change Credit Corp., which Lieberman calls "a private-public entity" that, operating outside the budget process, would invest "in many things." This would be industrial policy, aka socialism, on a grand scale. Lieberman's legislation also would create a Carbon Market Efficiency Board empowered to "provide allowances and alter demands" in response to "an impact that is much more onerous" than expected. And Lieberman says that if a foreign company selling a product in America "enjoys a price advantage over an American competitor" because the American firm has had to comply with the cap-and-trade regime, "we will impose a fee" on the foreign company "to equalize the price." Protectionism-masquerading-as-environmentalism will thicken the unsavory entanglement of commercial life and political life.McCain, the political hygienist, is eager to reduce the amount of money in politics. But cap-and-trade, by hugely increasing the amount of politics in the allocation of money, would guarantee a surge of money into politics.

Regarding McCain's "central facts," the U.N.'s World Meteorological Organization, which helped establish the Intergovernmental Panel on Climate Change — co-winner, with Al Gore, of the Nobel Prize — says global temperatures have not risen in a decade. So Congress might be arriving late at the save-the-planet party. Better late than never? No. When government, ever eager to expand its grip on the governed and their wealth, manufactures hysteria as an excuse for doing so, then: better never.

George F. Will is a syndicated writer in Washington.

Wednesday, April 2, 2008

Global Warming 2007 - Not!

By Scott Johnson and John Hinderaker

When Scott and I wrote "The Global Warming Hoax" in 1992, a group of Danish scientists had just published a paper that compared solar energy output (as measured by sunspot activity) to global temperatures, and found a striking correlation. No surprise there: just about all energy on earth comes from the Sun. Investors' Business Daily recalls that research and notes that the Sun has been quiet lately:
Solar activity fluctuates in an 11-year cycle. But so far in this cycle, the sun has been disturbingly quiet. The lack of increased activity could signal the beginning of what is known as a Maunder Minimum, an event which occurs every couple of centuries and can last as long as a century.
Such an event occurred in the 17th century. The observation of sunspots showed extraordinarily low levels of magnetism on the sun, with little or no 11-year cycle.
This solar hibernation corresponded with a period of bitter cold that began around 1650 and lasted, with intermittent spikes of warming, until 1715. Frigid winters and cold summers during that period led to massive crop failures, famine and death in Northern Europe.
[Kenneth Tapping, a solar researcher and project director for Canada's National Research Council] reports no change in the sun's magnetic field so far this cycle and warns that if the sun remains quiet for another year or two, it may indicate a repeat of that period of drastic cooling of the Earth, bringing massive snowfall and severe weather to the Northern Hemisphere. ***
R. Timothy Patterson, professor of geology and director of the Ottawa-Carleton Geoscience Center of Canada's Carleton University, says that "CO2 variations show little correlation with our planet's climate on long, medium and even short time scales."
Patterson, sharing Tapping's concern, says: "Solar scientists predict that, by 2020, the sun will be starting into its weakest Schwabe cycle of the past two centuries, likely leading to unusually cool conditions on Earth."
I suspect that many global warming alarmists are well aware that time is running out for them. If nothing is done and global temperatures decline in coming years--as they inevitably will, the only question is when--the alarmists will have been refuted. On the other hand, if they succeed in pushing through industry-destroying caps on carbon emissions around the world, and especially here in the U.S., they will take credit for the cooling when it comes, claiming it as vindication of their theories.
In that context, the 2008 election shapes up as very important. I don't worry too much about John McCain's acknowledged lack of economic expertise, as his instincts on the economy are generally conservative. But McCain badly needs to educate himself on the debate currently raging over the climate. "Global warming" represents the Left's most ambitious power grab since the fall of Communism, and if a Republican President doesn't stand it its way, who will?
If McCain is looking for a sensible energy policy, he might start with these recommendations from the Science and Environmental Policy Project:
Our policy recommendation is to phase out natural gas (methane) for electric power generation (now about 20% in US and 40% in UK), replace it with coal/nuclear, and use gas as a clean transportation fuel (in the form of Compressed Natural Gas -- CNG) for buses, trucks, and all fleet vehicles. In the US case it would cut oil imports by 30%. Further cuts would come from the use of plug-in and hybrid-electric cars.
There is lots of good work being done in climate science, a discipline that is still in its infancy. There are also plenty of creative proposals for how to address our energy needs. But if the Republican Party mindlessly signs on to the fake-science of anthropogenic global warming, those ideas will never see the light of day. Someone please get the word to John McCain.

Sunday, March 16, 2008

Global Warming?

Br-r-r! Where did global warming go? By Jeff Jacoby
Globe Columnist / January 6, 2008

THE STARK headline appeared just over a year ago. "2007 to be 'warmest on record,' " BBC News reported on Jan. 4, 2007. Citing experts in the British government's Meteorological Office, the story announced that "the world is likely to experience the warmest year on record in 2007," surpassing the all-time high reached in 1998.
But a funny thing happened on the way to the planetary hot flash: Much of the planet grew bitterly cold.
In South America, for example, the start of winter last year was one of the coldest ever observed. According to Eugenio Hackbart, chief meteorologist of the MetSul Weather Center in Brazil, "a brutal cold wave brought record low temperatures, widespread frost, snow, and major energy disruption." In Buenos Aires, it snowed for the first time in 89 years, while in Peru the cold was so intense that hundreds of people died and the government declared a state of emergency in 14 of the country's 24 provinces. In August, Chile's agriculture minister lamented "the toughest winter we have seen in the past 50 years," which caused losses of at least $200 million in destroyed crops and livestock.
Latin Americans weren't the only ones shivering.
University of Oklahoma geophysicist David Deming, a specialist in temperature and heat flow, notes in the Washington Times that "unexpected bitter cold swept the entire Southern Hemisphere in 2007." Johannesburg experienced its first significant snowfall in a quarter-century. Australia had its coldest ever June. New Zealand's vineyards lost much of their 2007 harvest when spring temperatures dropped to record lows.
Closer to home, 44.5 inches of snow fell in New Hampshire last month, breaking the previous record of 43 inches, set in 1876. And the Canadian government is forecasting the coldest winter in 15 years.
Now all of these may be short-lived weather anomalies, mere blips in the path of the global climatic warming that Al Gore and a host of alarmists proclaim the deadliest threat we face. But what if the frigid conditions that have caused so much distress in recent months signal an impending era of global cooling?
"Stock up on fur coats and felt boots!" advises Oleg Sorokhtin, a fellow of the Russian Academy of Natural Sciences and senior scientist at Moscow's Shirshov Institute of Oceanography. "The latest data . . . say that earth has passed the peak of its warmer period, and a fairly cold spell will set in quite soon, by 2012."
Sorokhtin dismisses the conventional global warming theory that greenhouse gases, especially human-emitted carbon dioxide, is causing the earth to grow hotter. Like a number of other scientists, he points to solar activity - sunspots and solar flares, which wax and wane over time - as having the greatest effect on climate.
"Carbon dioxide is not to blame for global climate change," Sorokhtin writes in an essay for Novosti. "Solar activity is many times more powerful than the energy produced by the whole of humankind." In a recent paper for the Danish National Space Center, physicists Henrik Svensmark and Eigil Friis-Christensen concur: "The sun . . . appears to be the main forcing agent in global climate change," they write.
Given the number of worldwide cold events, it is no surprise that 2007 didn't turn out to be the warmest ever. In fact, 2007's global temperature was essentially the same as that in 2006 - and 2005, and 2004, and every year back to 2001. The record set in 1998 has not been surpassed. For nearly a decade now, there has been no global warming. Even though atmospheric carbon dioxide continues to accumulate - it's up about 4 percent since 1998 - the global mean temperature has remained flat. That raises some obvious questions about the theory that CO2 is the cause of climate change.
Yet so relentlessly has the alarmist scenario been hyped, and so disdainfully have dissenting views been dismissed, that millions of people assume Gore must be right when he insists: "The debate in the scientific community is over."
But it isn't. Just last month, more than 100 scientists signed a strongly worded open letter pointing out that climate change is a well-known natural phenomenon, and that adapting to it is far more sensible than attempting to prevent it. Because slashing carbon dioxide emissions means retarding economic development, they warned, "the current UN approach of CO2 reduction is likely to increase human suffering from future climate change rather than to decrease it."
Climate science isn't a religion, and those who dispute its leading theory are not heretics. Much remains to be learned about how and why climate changes, and there is neither virtue nor wisdom in an emotional rush to counter global warming - especially if what's coming is a global Big Chill.

Global Cooling

From the Washington Times -

Al Gore says global warming is a planetary emergency. It is difficult to see how this can be so when record low temperatures are being set all over the world. In 2007, hundreds of people died, not from global warming, but from cold weather hazards.
Since the mid-19th century, the mean global temperature has increased by 0.7 degrees Celsius. This slight warming is not unusual, and lies well within the range of natural variation. Carbon dioxide continues to build in the atmosphere, but the mean planetary temperature hasn't increased significantly for nearly nine years. Antarctica is getting colder. Neither the intensity nor the frequency of hurricanes has increased. The 2007 season was the third-quietest since 1966. In 2006 not a single hurricane made landfall in the U.S.
South America this year experienced one of its coldest winters in decades. In Buenos Aires, snow fell for the first time since the year 1918. Dozens of homeless people died from exposure. In Peru, 200 people died from the cold and thousands more became infected with respiratory diseases. Crops failed, livestock perished, and the Peruvian government declared a state of emergency.
Unexpected bitter cold swept the entire Southern Hemisphere in 2007. Johannesburg, South Africa, had the first significant snowfall in 26 years. Australia experienced the coldest June ever. In northeastern Australia, the city of Townsville underwent the longest period of continuously cold weather since 1941. In New Zealand, the weather turned so cold that vineyards were endangered.
Last January, $1.42 billion worth of California produce was lost to a devastating five-day freeze. Thousands of agricultural employees were thrown out of work. At the supermarket, citrus prices soared. In the wake of the freeze, California Gov. Arnold Schwarzenegger asked President Bush to issue a disaster declaration for affected counties. A few months earlier, Mr. Schwarzenegger had enthusiastically signed the California Global Warming Solutions Act of 2006, a law designed to cool the climate. California Sen. Barbara Boxer continues to push for similar legislation in the U.S. Senate.
In April, a killing freeze destroyed 95 percent of South Carolina's peach crop, and 90 percent of North Carolina's apple harvest. At Charlotte, N.C., a record low temperature of 21 degrees Fahrenheit on April 8 was the coldest ever recorded for April, breaking a record set in 1923. On June 8, Denver recorded a new low of 31 degrees Fahrenheit. Denver's temperature records extend back to 1872.
Recent weeks have seen the return of unusually cold conditions to the Northern Hemisphere. On Dec. 7, St. Cloud, Minn., set a new record low of minus 15 degrees Fahrenheit. On the same date, record low temperatures were also recorded in Pennsylvania and Ohio.
Extreme cold weather is occurring worldwide. On Dec. 4, in Seoul, Korea, the temperature was a record minus 5 degrees Celsius. Nov. 24, in Meacham, Ore., the minimum temperature was 12 degrees Fahrenheit colder than the previous record low set in 1952. The Canadian government warns that this winter is likely to be the coldest in 15 years.
Oklahoma, Kansas and Missouri are just emerging from a destructive ice storm that left at least 36 people dead and a million without electric power. People worldwide are being reminded of what used to be common sense: Cold temperatures are inimical to human welfare and warm weather is beneficial. Left in the dark and cold, Oklahomans rushed out to buy electric generators powered by gasoline, not solar cells. No one seemed particularly concerned about the welfare of polar bears, penguins or walruses. Fossil fuels don't seem so awful when you're in the cold and dark.
If you think any of the preceding facts can falsify global warming, you're hopelessly naive. Nothing creates cognitive dissonance in the mind of a true believer. In 2005, a Canadian Greenpeace representative explained “global warming can mean colder, it can mean drier, it can mean wetter.” In other words, all weather variations are evidence for global warming. I can't make this stuff up.
Global warming has long since passed from scientific hypothesis to the realm of pseudo-scientific mumbo-jumbo.
David Deming is a geophysicist, an adjunct scholar with the National Center for Policy Analysis, and associate professor of Arts and Sciences at the University of Oklahoma.