Sea Levels See-Saw
An article in Japan’s Kyodo News July 7 attributed a sea level rise in 2002 of over 5 cm greater than the century’s average to global warming. However, the paper added that “the new figure topped the previous highest rise of 5.07 cm recorded in 1948,” also pointing out that the latest rise began only in 1985.
In this regard, an article on sea-level rise in Science (July 1) makes for interesting reading. Scientists are unable to make the “steric” rise (caused by thermal expansion of a warming ocean) now estimated at 0.5 mm/year and the “eustatic” rise (caused by more fresh water) normally estimated at 0.2 mm/year [the IPCC figure] add up to the total IPCC figure for sea-level rise of 1.5-2.0 mm/year during the 20th century. Some have suggested the tide gage readings are predominantly in unusual areas for sea-level readings.
The author believes the explanation is likely more fresh water than thought running off continents, but concludes: “Global coverage by satellite altimetry…shows a notably larger than average level rise in the last decade of the century. The detection of the relatively slow century-scale trend is plagued by the dominance of high (decadal) frequencies in the spectrum of the rate of sea-level variability. It will take several decades to obtain good estimates of the role of global warming in sea level rise.
“In the meantime, 20th century sea level remains an enigma — we do not know whether warming or melting was dominant, and the budget is far from closed.”
According to London’s Guardian (July 19), scientists from Australia’s National Tides Facility suggest that, while the sea level around the Pacific atoll nation of Tuvalu (which is only 3 meters above the sea) have risen by about 5 cm since 1993, this may not be anything to worry about. One scientist said, “We’ve had a large El Nino which appears to have raised sea levels across the western Pacific, so rises in future may well not be as dramatic.” Previous estimates suggested that the aftermath of El Nino could see a fall of up to 30 cm in the waters around Tuvalu.
Nevertheless, the Tuvaluan Congregational Church has asked Australia to give the Tuvaluan government an island to which they can evacuate the entire nation.
Sequestration Appears Sustainable
The idea that carbon sequestration via forests is a sustainable option for reducing the amount of CO2 in the atmosphere has come under attack in recent years. The theory is that new forest growth will quickly become saturated and will start returning stored carbon to the atmosphere by 2050. New research from Luo et al published in Global Biogeochemical Cycles suggests that this may not be the case.
The researchers examined a new forest called Duke Forest established in 1983 in North Carolina. Beginning in 1996, they started enriching 30 meter diameter plots with CO2 to concentration 200 ppm above ambient, while maintaining control plots at the ambient level. The studies revealed “sustained photosynthetic stimulation at leaf and canpy levels which resulted in sustained stimulation of wood biomass increment and a larger C[arbon] accumulation in the forest floor at elevated CO2 than at ambient CO2.”
The researchers then developed a model for studying the long-term sustainability of sequestration. In a scenario where atmospheric CO2 concentration gradually rises from 378 ppm in 2000 to 710 ppm in 2001, they calculated sustained carbon sequestration rising from 69 units to 201 in 2100. (co2science.org, July 16)
Extreme Weather Events Reportedly Increase
On July 2, the World Meteorological Organization (WMO – a UN agency) issued a press release that blamed global warming for an observed increase in extreme weather events, tied to the heat wave in Europe and the busy tornado season in the central US. The WMO also blamed the cooler-than-average spring in the eastern US on increasing temperatures. Hedging their predictions with “mights” and “coulds,” the WMO suggested that, “Recent scientific assessments indicate that, as the global temperatures continue to warm due to climate change, the number and intensity of extreme events might increase.” The press release also claimed that, “considering land temperatures only, last May was the warmest on record.”
However, as John Daly, who runs the Still Waiting for Greenhouse web site from Tasmania, pointed out, much of the seeming increase in extreme weather events could be attributable to increased reporting of the events rather than to an actual increase in their occurrence. When this possibility was put to the Director of the World Climate Program for the WMO, Ken Davidson, he replied, “You are correct that the scientific evidence (statistical and empirical) are (sic) not present to conclusively state that the number of events have (sic) increased. However, the number of extreme events that are being reported and are truly extreme events has increased both through the meteorological services and through the aid agencies as well as through the disaster reporting agencies and corporations. So, this could be because of improved monitoring and reporting.”
Daly also pointed out that, although the scattered surface temperature stations in their urban heat islands may have suggested that May was the warmest month on record, the satellite temperature measurements place this May as only the 4th warmest in the last 25 years. Finally, Daly reminded us that recent temperatures are influenced upwards by the current El Nino. (<http://www.john-daly.com>)
Etc.
Does McCain-Lieberman Cover This?
Tristram West of the Oak Ridge National Laboratory has calculated that barbecue grilling on Independence Day burns the equivalent of 2,300 acres of forest and consumes enough energy to power a town the size of Flagstaff, Ariz., for an entire year.
Not only that, but the grilling emits 225,000 metric tons of carbon dioxide into the atmosphere. West based his calculations on the relative use of gas and charcoal grills. If the nearly 34 million liquefied petroleum and natural gas grills used on July 4 were instead charcoal grills, they would emit an additional 89,000 metric tons of carbon dioxide, West said (a 40 percent increase in emissions). If, however, the nearly 23 million charcoal grills were fueled by liquefied petroleum gas, carbon dioxide emissions could be reduced by about 26 percent, or about 59,000 metric tons. (Eurekalert press release, July 3).
Less Developed Argument
Klaus Toepfer, head of the UN Environment Program, appears to want to keep the Chinese people in poverty. According to Reuters (July 17), he criticized Chinese plans for economic growth on Malthusian grounds, arguing that the world does not possess enough resources to meet China’s aim of quadrupling its economy by 2020.
Saying that this was part of the “rationality of economics,” Toepfer also appeared to cast doubt on the idea that anywhere else had achieved economic progress. He pronounced, “Quadrupling the GDP of a country of 1.3 billion, can you imagine what are the consequences if you go in the same structure as was done in the so-called developed countries?” Toepfer was speaking from Australia. He presumably arrived there by so-called airplane, rather than by outrigger canoe.
Land of the Midsummer Snow
[Editor’s note: Cooler Heads does not stoop to the methods of global warming alarmists, who send out a press release every time there’s a hot spell. We therefore make no claims for the following item. It’s merely anecdotal and tells us nothing about global temperature trends.]
An inch of snow fell on July 16 at the headquarters of Denali National Park in central Alaska. The Fairbanks Daily Miner-News (July18) reported that it was the first snow ever recorded there during the entire month of July. The high temperature of 42 degrees F was also the lowest ever recorded in July.
Similar low temperature marks were set throughout central Alaska. In Fairbanks, the high was 48 degrees, which is only the third July day in 99 years that the thermometer hasn’t reached 50 degrees. Snow was also reported for the first time ever in July at several other locations. According to the U. S. Naval Observatory web site, on July 16 the sun rose in Fairbanks at 3:56 AM and set at 11:56 PM.
Announcements
* “The Climate Conflict”, the award-winning Danish documentary, will be aired on the Science Channel on Friday, August 8, from 9 to 10 PM ET. It will also be shown five times on Saturday, August 9, at midnight, 5 AM, 8 AM, 1 PM, and 4 PM. The broadcast schedule may be consulted at <http://science.discovery.com>. The Cooler Heads Coalition has sponsored two showings of “The Climate Conflict” with introductory remarks by solar physicist Paal Brekke of the European Space Agency, who is interviewed in the documentary. The Science Channel is broadcasting a new English-language version that has been updated. Danish scientist Henrik Svensmark’s theory that solar variation is the main climate driver is investigated.
* The Fraser Institute in Canada has published a paper titled “Greenhouse Gas Reductions: Not Warranted, Not Beneficial” by Dr. Kenneth Green, Fraser’s chief scientist and director of its Risk and Environment Centre. The paper may be found on the web at http://www.fraserinstitute.ca/admin/books/files/Climate.pdf.
* The Center for Science and Public Policy, a project of Frontiers of Freedom Institute, has published a paper titled “EPA Mercury MACT Regulation Rulemaking Not Justified by Science.” Its authors are Dr. Willie Soon and Robert Ferguson. It will soon be posted at www.ff.org <http://www.ff.org>.
Corrections
* In our article in the last issue on S. 139, the Lieberman-McCain bill to regulate CO2 emissions, we said that national disposable income “would take fifteen years to return to the amount reached in 2000” and that, “By 2025, the country’s GDP would be $106 billion lower in real terms than it is today.” Both these statements are incorrect, owing to a misreading of graphs in the report. They should read: “would take fifteen years to return to the levels envisaged without McCain-Lieberman,” and “… would be $106 billion lower in real terms than it would have been without McCain-Lieberman.”
* In vol. VII, no. 12, we also undercounted the number of scientists who signed the open letter to Canadian PM-in-waiting Paul Martin (now available on the web at <http://www.sepp.org/NewSEPP/LttrtoPaulMartin.html>). There were 46 signatories at our last count.
We regret the errors and thank our readers for pointing them out. We encourage our readers to point out any future errors.