Mar 18, 2008
CO2 and Global Warming
Dr. Richard Lindzen in Ecoworld
Climate models forecast increasing temperatures on earth because of increasing levels of atmospheric CO2, but observational data appears to contradict this claim.
Subsequent to publishing the feature “The Fluid Envelope - A Case Against Climate Alarm” by Dr. Richard Lindzen, we received an email from a science journalist questioning one of the central assertions in Lindzen’s report. The writer wanted to know on what basis Dr. Lindzen was claiming there has been no significant warming in the last 10+ years. In response, Lindzen emailed the following table, showing temperature trends for the last 27 years. This data is based on global (including over the ocean) average temperature readings per year, per altitude, as reported by the U.K.’s Hadley Climatic Research Unit:
See larger table here
As the data indicates, over the past two decades, temperatures have actually declined in the upper troposphere, even though there has been some minor upward trends in temperature at sea level and lower altitudes. This completely contradicts conventional global warming models. As Dr. Lindzen explained in his follow up email:
“I used this data to show that the trend at 300 hPa was not about 2.5 x the surface trend which is what greenhouse warming [models] requires.” Apparently climate models that predict global warming ala increasing levels of atmospheric CO2 assume increasing temperature trends in the troposphere, where CO2 concentrates, and the reality is the troposphere is not getting hotter, it is getting cooler.
Before we radically rearrange the political economy of the world because some scientists claim anthropogenic CO2 is the cause of climate change, it might be worthwhile for anyone taking a position on the topic to consider whether or not this is indeed “well settled science.”
Mar 14, 2008
NOAA: Coldest Winter Since 2000/01 for the US, Globe
The average temperature across both the contiguous U.S. and the globe during climatological winter (December 2007-February 2008) was the coolest since 2001, according to scientists at NOAA’s National Climatic Data Center in Asheville, N.C. In the contiguous United States, the average winter temperature was 33.2F (0.6C), which was 0.2F (0.1C) above the 20th century average - yet still ranks as the coolest since 2001. It was the 54th coolest winter out of 114 years since national records began in 1895. It was warmest in the east and south and coldest in the west and central states.
See larger image here
In terms of winter precipitation, Pacific storms, bringing heavy precipitation to large parts of the West, produced high snowpack that will provide welcome runoff this spring. During January alone, 170 inches of snow fell at the Alta ski area near Salt Lake City, Utah, more than twice the normal amount for the month, eclipsing the previous record of 168 inches that fell in 1967. At the end of February, seasonal precipitation for the 2008 Water Year, which began on October 1, 2007, was well above average over much of the West. Mountain snowpack exceeded 150 percent of average in large parts of Colorado, New Mexico, Arizona, and Oregon at the end of February. Spring run-off from the above average snowpack in the West is expected to be beneficial in drought plagued areas.
See larger image here
Record February precipitation in the Northeast helped make the winter the fifth wettest on record for the region. New York had its wettest winter, while Pennsylvania, Connecticut, Vermont, and Colorado to the West, had their second wettest. Snowfall was above normal in northern New England, where some locations posted all-time record winter (December to February) snow totals. Concord, N.H., received 100.1 inches, which was 22.1 inches above the previous record set during the winter of 1886-87. Burlington, Vt., received 103.2 inches, which was 6.3 inches above the previous record set during the winter of 1970-71.
See full release here. Note areas of the Midwest also saw record snow including as we have reported Madison, Wisconsin and also Green Bay. See the Green Bay story here.
Mar 12, 2008
Is Climate Sensitive to Solar Variability?
By Nicola Scafetta and Bruce J. West
The causes of global warming-the increase of approximately 0.8plus or minus 0.1C in the average global temperature near Earth’s surface since 1900-are not as apparent as some recent scientific publications and the popular media indicate. We contend that the changes in Earth’s average surface temperature are directly linked to two distinctly different aspects of the Sun’s dynamics: the short-term statistical fluctuations in the Sun’s irradiance and the longer-term solar cycles. This argument for directly linking the Sun’s dynamics to the response of Earth’s climate is based on our research and augments the interpretation of the causes of global warming presented in the United Nations 2007 Intergovernmental Panel on Climate Change (IPCC) report.
Thus the average global temperature record presents secular patterns of 22- and 11-year cycles and a short timescale fluctuation signature (with apparent inverse power-law statistics), both of which appear to be induced by solar dynamics. The same patterns are poorly reproduced by present-day GCMs and are dismissively interpreted as internal variability (noise) of climate. The nonequilibrium thermodynamic models we used suggest that the Sun is influencing climate significantly more than the IPCC report claims. If climate is as sensitive to solar changes as the above phenomenological findings suggest, the current anthropogenic contribution
to global warming is significantly overestimated. We estimate that the Sun could account for as much as 69% of the increase in Earth’s average temperature, depending on the TSI reconstruction used. Furthermore, if the Sun does cool off, as some solar forecasts predict will happen over the next few decades, that cooling could stabilize Earth’s climate and avoid the catastrophic consequences predicted in the IPCC report. Read the full opinion here.
Nicola Scafetta is a research associate in the Duke University physics department. Bruce West is chief scientist in the mathematical and information science directorate, US Army Research Office, in Research Triangle Park, North Carolina.
Mar 11, 2008
Canada Again Blasted by Latest Weekend Storm
By Dr. Madhav, Khandekhar, retired Environment Canada Meteorologist
The March 8 2008 winter storm was perhaps 8th or 9th storm to hit the greater Toronto area since December 10 2007. This latest storm was a mammoth storm, a blizzard by definition with wind gusts close to 100 km/hr at times and wind chill values in the range of -20C ( ~-5F). Total snow fall out of this storm: 15-25 cm: more snow elsewhere, for example Ottawa ( Canada’s Capital city) received almost 50 cm of snow between Friday & Saturday, as did St. Catherines, a town of over 150K near Niagara Falls.
For the greater Toronto area, the total seasonal snow accumultaion so far: 195 cm ( Normal ~115 Cm), record snow fall in 1938-39 winter, 207 cm; with a few more weeks of below freezing temperatures to prevail, it is likely Toronto will surpass the all-time snow accumulation of 207 cm set in 1938-39
Day After Storm: Lots of snow in streets every where, very little has melted away as temperature continues well below normal, Monday ( March 10) morning temp is -14C in Markham (northeast of Toronto Downtown) and about -12C in Downtown Toronto (urban impact)
Elsewhere in the Canadian Maritimes: Almost record-breaking snow in New Brunswick, Newfoundalnd and PEI (Prince Edward Island) lots of snow ( more than normal ): mean temperature this winter season well below normal for most of the Maritime Provinces. This winter season ( 2007-08) season will definitely go down as one of the harshest & longest winters in Canada coast-to-coast, in almost 40 years.
See this story on ”The Winter Without End
Photo from Cleveland, Ohio to the south by Andre Bernier, WJW-TV, Cleveland, Ohio. See larger image here.
Andre adds the following: After running a snowfall departure all winter at the NWS Cleveland, we are now well into surplus. Oddly enough, the rest of the cities around us carried surpluses all year. As of today (snowfall departures):CLE = +13.1”, CAK = +27.2”, MFD = +39.9”, TOL = +17.8”, YNG = +48.5” !!!!!! Youngstown has now surpassed the previous snowiest winters in recorded history and we still have March and April to go.
Mar 07, 2008
Causes of Climate Change Varied: Canadian Poll Show No Consensus
By Gordon Jaremko, edmontonjournal.com
Only about one in three Alberta earth scientists and engineers believe the culprit behind climate change has been identified, a new poll reported today. The expert jury is divided, with 26 per cent attributing global warming to human activity like burning fossil fuels and 27 per cent blaming other causes such as volcanoes, sunspots, earth crust movements and natural evolution of the planet. A 99-per-cent majority believes the climate is changing. But 45 per cent blame both human and natural influences, and 68 per cent disagree with the popular statement that “the debate on the scientific causes of recent climate change is settled.”
The divisions showed up in a canvass of more than 51,000 specialists licensed to practice the highly educated occupations by the Association of Professional Engineers, Geologists and Geophysicists of Alberta. “We’re not surprised at all,” APEGGA executive director Neil Windsor said today. “There is no clear consensus of scientists that we know of.”
The only agreement among professionals is “we should do everything we can” to understand climate, adapt structures such as buildings and bridges to change and reduce human contributions to harmful trends, Windsor said. The survey received 1,077 replies or a sample rated as an accurate portrait of the occupational groups’ views to within three percentage points 19 times out of 20, APEGGA reported. Alberta Environment helped design the poll and will give the results to the provincial government, association spokesman Philip Mulder said. APEGGA is planning an “environmental summit” with other concerned agencies on Alberta climate change causes, effects and adaptations.