Arctic Warming

2,000 year-long Arctic cooling reversed in the last 100 years

By Bruce Melton PEUncategorized

Scientists have known for a long time that our Earth has been cooling naturally since the last thermal maximum about 7,000 years ago. At least intuitively, from all of their paleoclimate knowledge, our climate should be following the normal pattern of astronomical cycles. These natural cycles say that Earth should have been cooling for quite…

October 24, 2009

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Aerosols: Complicated atmospheric chemistry responsible for 45% of warming in the Arctic

By Bruce Melton PEUncategorized

The major aerosols are black carbon (see May 7), sulfates and oxides of nitrogen (NOx). They come from combustion. Black carbon comes mostly from the burning of most fuels in developing and third world nations where pollution controls are not as stringent as in the developing world. Sulfates and NOx comes mostly from coal and…

May 10, 2009

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Remember, average global warming over land is double the global average because of the cooling influence of our oceans and ice sheets, or 3.56 degrees C in December (6.4 F). and the average over the arctic is four times the global average or 7.12 C (12.8 F). Importantly, the increase in extreme temperature is far greater than the average, and extreme weather increases nonlinearly because of the basics of heat and energy physics, where a little warming does not create a little more extremeness in the weather, it creates a lot more.

2,000 year-long Arctic cooling reversed in the last 100 years

Aerosols: Complicated atmospheric chemistry responsible for 45% of warming in the Arctic

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