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Big_Bird
Joined: 31 Jan 2003
Location: Sometimes here sometimes there...
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 Posted: Sat May 31, 2008 5:56 am Post subject: Case against climate change discredited by study |
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Case against climate change discredited by study
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A difference in the way British and American ships measured the temperature of the ocean during the 1940s may explain why the world appeared to undergo a period of sudden cooling immediately after the Second World War.
Scientists believe they can now explain an anomaly in the global temperature record for the twentieth century, which has been used by climate change sceptics to undermine the link between rising temperatures and increases in atmospheric carbon dioxide.
The record for sea-surface temperatures shows a sudden fall after 1945, which appeared to go against the general trend for rising global average temperatures during the past century.
Sceptics have argued it supports the idea that rising temperatures have more to do with increased solar activity � sunspots � than increasing levels of man-made carbon dioxide exacerbating the greenhouse effect.
However, an international team of scientists has investigated the raw data from the period. They found a sudden increase from 1945 onwards in the proportion of global measurements taken by British ships relative to American ships.
The scientists point out that the British measurements were taken by throwing canvas buckets over the side and hauling water up to the deck for temperatures to be measured by immersing a thermometer for several minutes, which would result in a slightly cooler record because of evaporation from the bucket.
The preferred American method was to take the temperature of the water sucked in by intake pipes to cool the ships' engines. Those records would be slightly warmer than the actual temperature of the sea because of the heat from the ship, the scientists said. |
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Leslie Cheswyck
Joined: 31 May 2003
Location: University of Western Chile
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| Posted: Sat May 31, 2008 6:07 am Post subject: |
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| You mean neither side did the obvious and just dip the goddamned thermometer in the water? |
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khyber
Joined: 16 Jan 2003
Location: Compunction Junction
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| Posted: Sat May 31, 2008 9:44 am Post subject: |
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The scientists point out that the British measurements were taken by throwing canvas buckets over the side and hauling water up to the deck for temperatures to be measured by immersing a thermometer for several minutes, which would result in a slightly cooler record because of evaporation from the bucket.
The preferred American method was to take the temperature of the water sucked in by intake pipes to cool the ships' engines. |
Those were the two best options?
nutty |
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some waygug-in
Joined: 25 Jan 2003
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