Global Warming

Griffin vs. Hansen

griffinLast weekend when NASA Director Michael Griffin deigned to criticize global warming alarmists by saying “I am not sure that it is fair to say that it is a problem we must wrestle with” – Griffin made his remarks during an NPR radio interview. Afterwards, James Hansen, a scientist, also with NASA, was prompted to describe Griffin’s remarks as “arrogant” and “ignorant.”

Image – NASA Director Michael Griffin – courtesy NASA

hansenBut upon what “science” are Hansen’s criticisms based? Hansen testified before the imperious “Select Committee of Energy Independence and Global Warming of the United States House of Representatives” in April with a tome entitled “Dangerous Human-Made Interference with Climate.” It turns out that much of what Hansen told lawmakers was his opinion, and not tested and peer-reviewed scientific fact.

Image – NASA Scientist James Hansen – courtesy NASA

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Are They Blowing Smoke Up Our AWS?

awsAutomatic Weather Stations (AWS) collect temperature, humidity and atmospheric pressure (and wind direction and velocity in some locations) from various locations throughout the world. Data from this system is used to record, and subsequently extrapolate, climate patterns. But is there a problem with the accuracy of the data collected by individual AWS installations because of localized urban conditions and features? Can smoke from a nearby BBQ distort readings? Can air conditioner exhaust distort them? Can heat from asphalt?

Image: a remote weather observation unit – click for larger image.

In what might be a major contamination of weather data, weather sensors can be influenced by the effects of surrounding human activity and artifacts. These factors will skew the data in some locations because of unnatural heating and distortion of natural climatic conditions. If you bias temperature readings in some locations, it would be impossible to rely on that data unless it has been normalized to data collected in undeveloped areas.

A Northern California blog, What’s Up With That?, identifies four cases where Urban Heat Island (UHI) effects are likely distorting temperature data.

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Two Houses

Two houses — two contrasting stories . . .

The first house:

gore-farmA 20-room mansion (not including 8 bathrooms) heated by natural gas. Add on a pool (and a pool house) and a separate guest house, all heated by gas. In ONE MONTH ALONE this mansion consumes more energy than the average American household in an ENTIRE YEAR. The average bill for electricity and natural gas runs over $2,400.00 per month. In natural gas alone, this property consumes more than 20 times the national average for an American Home. This house is not in the northern or Midwestern ‘snow belt .’ It’s in the South.

The second house:

WDesigned by an architecture professor, this house incorporates every ‘green’ feature current home construction can provide. The house contains only 4,000 square feet (4 bedrooms) and is nestled on arid-high prairie in the American southwest. A central closet in the house holds geothermal heat pumps drawing ground water through pipes sunk 300 feet into the ground. The water (usually 67 degrees F.) heats the house in winter and cools it in summer. The system uses no fossil fuels – such as oil or natural gas – and it consumes 25% of the electricity required for a conventional heating/cooling system. Rainwater from the roof is collected and funneled into a 25,000 gallon underground cistern. Wastewater from showers, sinks and toilets goes into underground purifying tanks and then into the cistern. The collected water then irrigates the land surrounding the house. Flowers and shrubs native to the area blend the property into the surrounding rural landscape.

The Assessment:

By now, you probably have guessed that house number one is that of environmental activist, film maker and former Vice President Al Gore, located near Nashville, Tennessee. This house has been under siege in the news lately since Gore won the Academy Award for “An Inconvenient Truth” — which has a few accuracy flaws, to say the least. Gore shrugs the excess off by purchasing “Carbon Offsets” — from himself, incidentally. The mainstream media give him a pass on it.

What surprised me about the second house is that it is the home of George W. and Laura Bush, located near Crawford, Texas. So, why isn’t this trumpeted in the Greenbat news, heralding the President as being an environmental icon? I think you can figure that out on your own.

Hat Tip to Global Warming HoaxA Story of Two Houses

Earth Approaching Maximum Black Body Temperature

tongueIn physics, a black body is an object that absorbs all electromagnetic radiation that falls onto it. No radiation passes through it and none is reflected. It is this lack of both transmission and reflection to which the name refers. These properties make black bodies ideal sources of purely thermal radiation. That is, the amount and wavelength (color) of electromagnetic radiation they emit is directly related to their temperature. Black bodies below around 700 K (430 °C) produce very little radiation at visible wavelengths and appear black (hence the name). Black bodies above this temperature, however, begin to produce radiation at visible wavelengths starting at red, going through orange, yellow, and white before ending up at blue as the temperature increases.

Image: CIE Black Body Color Temperature Chart — “The Tongue” — click for full-sized chart

The color temperature of the Sun is near the yellow zone on the inset chart, while the color temperature of the Earth (obviously) is outside the visible radiation spectrum and in the far infrared (low temperature) corner of the chart. Given the (more or less) constant energy level emitted by the Sun, the Earth can only rise to a finite maximum temperature. An independent study predicts that we’re almost there!

John Ray (M.A.; Ph.D.), writing from Brisbane, Australia, passes along this article by Ian Schumacher, in which he offers six postulates supporting the maximum temperature argument: What is the maximum temperature of the Earth?

  1. The average temperature of a body in thermodynamic equilibrium with an external energy source can never exceed the temperature of a black body in the same environment.
  2. The maximum temperature of a body in thermodynamic equilibrium with an external energy source can never exceed the temperature of black body in the same environment.
  3. The greenhouse effect can never produce a temperature that is higher than the temperature of a black body in the same environment.
  4. The earth is operating very close to its maximum possible temperature.
  5. The transition from Ice Age to warm period and back to Ice Age is achieved through a runaway greenhouse effect and its opposite.
  6. The runaway greenhouse effect ends when the Earth has achieved a effective absorptivity as close to unity as it can get after which the earth becomes insensitive to further positive feedback changes.

Read the entire article to get a sense for the physics involved and narratives associated with these six postulates.

Hat tip to my colleague, Rick, for bringing this to my attention.

Don’t Fall For That Old “RedEye Mind Trick”

Carbon Offsets are shaping up to be the new “Ponzi Scheme” in America where the first investors flourish and the last investors get conned out of their cash.

From Financial Times via Hot Air.

Companies and individuals rushing to go green have been spending millions on ‘carbon credit’ projects that yield few if any environmental benefits.

A Financial Times investigation has uncovered widespread failings in the new markets for greenhouse gases, suggesting some organisations are paying for emissions reductions that do not take place.

Others are meanwhile making big profits from carbon trading for very small expenditure and in some cases for clean-ups that they would have made anyway.

The growing political salience of environmental politics has sparked a ‘green gold rush’, which has seen a dramatic expansion in the number of businesses offering both companies and individuals the chance to go ‘carbon neutral’, offsetting their own energy use by buying carbon credits that cancel out their contribution to global warming.

The Gore Effect — Revisited

coldwx.jpgThe chief climate propagandist at the Intergovernmental Panel on Climate Change (IPCC) surely must be saying to himself, “Man, I picked the wrong day to stop sniffing greenhouse gasses.”

No sooner did the newest IPCC “climate report” predicting massive global warming doom hit the streets, than the weather decided to turn cold and snow on Easter weekend. Events were canceled, folks either endured 30° temperatures for outdoor Easter Sunrise Services (or went inside) and baseball games were snowed out. All this on the heels of the most dire report to date.

It seems that whenever there is a major “climate doom and gloom” event, actual weather phenomena say “not so fast.” Things like freezing temperatures in springtime and snowfall in Malibu tend to reinforce the notional Gore Effect.

Twenty years from now, Al Gore‘s histrionics will be all for naught since neither Greenland nor Antarctica will melt causing the oceans to rise and flood the world’s lowlands. The band of cartographers poised to “redraw the map of the planet” will simply not be needed. Top scientists often scoff at Gore, calling his crusade out for what it is — a sham.

The IPCC Report is yet another “over-represented” view of nature and the effects allegedly caused by mankind. The ultimate goal is to extort industrialized nations and to sell the idea of pyramid schemes like Gore’s “carbon offsets.”

Please visit our Global Warming Resources page for more on the topic of global climate change.

UPDATE: Big Dog is hosting a trackback for global warming articles.