http://icecap.us/images/uploads/Cold_December_And_January.pdf

Al Gore – The Weasel http://stevengoddard.wordpress.com/2011/02/13/al-gore-the-weasel/

Very hot--warm??--maybe cool!!

UK Met Office explicitly contradicts Dr. Hansen’s claim:--- That says it all!!

This may be slightly OT, but interesting reading for all.

My outside light bulbs burn out quite often, and I was considering replacing one (a 60 watt bulb) with a light-emitting diode (LED) bulb (very expensive) to see how it performs.

I decided to see what information was available on the web, and found this study on a U.S. government website., entitled "Performance of Incandescent A-Type and Decorative Lamps and LED Replacements - CALiPER Benchmark Report", prepared under contract for the Department of Energy.

The article is accessible here: CALiPER Report

This report compares performance of incandescent bulbs, Compact Fluorescent Lamps (CFLs), and LEDs.

One thing that caught my eye was on page 22 of the report:

Manufacturer Claims

The majority of LED A-type replacement lamps and decorative lamps do not meet manufacturer performance claims. Most products carry claims such as “equivalent to a 25-W lamp” or “replaces a 40-W lamp” or “90% more efficient than a 60-W lamp.” Typically, CALiPER testing reveals that these lamps produce only 10-60% of their claimed light output, and often their directionality would not make them suitable replacements for omnidirectional lamps. In addition, in many cases the SSL products have color characteristics that are not typical of the products they claim to replace (such as much colder color temperatures, poor CRI, or light that is not truly white).

Performance claims for energy efficiency also are usually incorrect or misleading. The majority of products draw more power while producing less light output than claimed, reducing their efficacy. Because of low light output levels, typically two or more LED replacement lamps may be needed to produce the output of one incandescent A lamp, so energy savings would be diminished or lost entirely. For applications requiring very low light levels, some LED lamps could provide energy-saving alternatives. For example, some better-performing LED replacements that claim to replace 40-W incandescents would in fact be suitable to replace 25-W incandescent lamps and still achieve energy savings.

Whether you are an "AGW proponent","denier", or anywhere in between, I think you will find this study and the enclosed graphs interesting reading.