Friday, 24 February 2012

World headed toward mini ice age?

Global warming as seen in Versoix, Switzerland
in James Hansen's hottest year ever, 2005

Physicist Luboš Motl on his blog The Reference Frame analyses the RSS data for the last twenty years.

We've been emphasizing for a few years that in the last decade, the global warming trend wasn't statistically significant and according to most datasets, it was actually negative: linear regression produces a cooling result.

However, aside from 10 years, there's always been an interesting discussion about the last 15 years. Some skeptics were happy when Phil Jones admitted that there was no statistically significant warming trend in the last 15 years.

Now, the times are changing. The debates about the statistical significance of the 15-year warming trend are gradually becoming irrelevant. Even when we talk about 15 years, the trend has actually been a cooling one!

For the data see the Reference Frame - link.

Mauna Kea; Image USGS

From Our Amazing Planet, we read of the snow in Hawaian Mountains:
Snow covered the tops of Mauna Loa and Mauna Kea, two of the five volcanoes that form Hawaii, as seen in photos from the U.S. Geological Survey.
Mauna Kea is nearly 14,000 feet (4,200 meters) above sea level, making it the highest peak in Hawaii (if measured from the seafloor, it's the tallest mountain in the world). This mountain is known for snow — its name means "white mountain" in Hawaiian. According to Hawaiian mythology, Poli'ahu, a goddess of snow, lives here. Mauna Loa is slightly shorter.
Atmospheric Co2 values are derived from in situ air at Mauna Loa.

The Washington Spokesman has a story headed:    World headed toward mini ice age?
A report released at the end of January by British climate scientists at the University of East Anglia’s Climate Research Unit showed that the Earth’s average temperatures have dropped to the same levels seen back in 1997 before the so-called “big warmup.”
The average global temperature in 2011 was 0.68 degrees above normal. In the previous decade, the average temperature on this planet was 0.81 degrees above normal.
The British scientists agree with many Russian and Japanese climate scientists that the world could be headed toward a mini ice age sometime in the near future.
The new climate study suggests that the next significant cycle of cooling may rival the 70-year period in the mid-1600s that saw “frost fairs” held each winter season in London on the Thames River, which froze solid in January and February.

Steve Goddard (Real-Science)
The eight coldest days of the last decade have all occurred in the first seven weeks of 2012. Temperatures are currently 0.4 degrees colder for the date than any other year in the past decade. Temperatures have dropped almost a full degree since 2010.
Meanwhile, the hockey team continues to ramp up the lies about rising temperatures, and Phil prepares to throw any remaining integrity out the window with HadCRUTv4.

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