The alarmists seem to be increasingly desperate to find anything that disputes the "climate change is natural" theme - and judging by this latest effort reported by the Independent they are really scraping the bottom of the barrel. Or should that be bucket?
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.
Well, no - it didn't "appear" to go against the trend, it DID go against the trend and, despite the headline claiming this new "study" has "discredited" a significant anomaly, it doesn't dispute the fact that there was a very real cooling period between the 40's and 70's at a time when CO2 emissions were at their peak.
Anyway, the main thrust of their argument is this .......
[A]n 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.
Uh huh. So?
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.
How do they know? They weren't there when this was being done, they did not conduct experiments at the time to see if there was a "slightly cooler record" so what this team have actually done is .... guess.
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.
What heat from the ship? These are INTAKE pipes - not exhausts. A ship doesn't generate heat - it's a fucking great lump of metal and probably a darn sight colder than the water it is pushing through!
This study is absolute crap and they know it. Do they know if the canvas buckets were drawn up in the shade or in direct sun? How much water does each bucket hold. How much colder will it get sitting on the deck for a few minutes?
The most remarkable thing about this study in assumption and guesswork is that it somehow managed to get published in Nature magazine - a once respectable scientific journal. That, if anything, tells you more about the politicisation of science than anything else.
Does the study really discredit - as the Independent asserts - the fact that cooling took place between the forties and seventies? No - the only thing this study discredits is science itself.