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Data suggesting global warming slow-down is wrong

Data which showed that global warming was slowing down was skewed by a change in the way it is measured, according to a report.

The New Scientist reports that sea temperatures measured by monitoring equipment built into ships is innacurate because the ambient temperature of thousands of tonnes of steel being pushed through water by an engine with thousands of horse power is higher than that of a little plastic bouy bobbing about on its own in the middle of the ocean.

Over the past decade, measurements have manly been taken from bouys, but between the 1970s and 2000 they were taken from ships.

The change in methodology lead climate experts to believe that the rate of warming had slowed down from 0.16 °C per cent per decade to 0.09 °C per decade, a change of 0.07 °C,which is quite a big deal in the grand scheme of things.

The claim has now been brought into question by John Kennedy and colleagues at the UK Met Office who have now found that the real slowdown was significantly smaller.

Kennedy suggests that the change in the way the temperatures are measured could account for up to 0.03 °C of the change.

We'll dedicate this discovery to anyone who has ever looked at the outside temperature guage on their car, wondered why it says it's a lot warmer than the weather forecast predicted, and then come to the conclusion that the heat of the car must warm the air around the car up a bit, making the measurement a bit off.

What's more, another study conducted by Susan Solomon of the National Oceanic and Atmospheric Administration in Boulder, Colorado found that lower levels of water vapour in the stratosphere since 2000 had weakened the greenhouse effect taking another 0.04 °C off of the apparent change.

Added together, the data suggests that previous predictions were correct and that 2010 will be the warmest year ever, surpassing previous records set in 1998 and 2005.