Those characteristics can include a brief dip in air pressure, a change in wind direction, a change in wind speed, a rise in air temperature or a dip in ultraviolet light reaching the rover.

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The team suggests it is worth investigating whether the long-term AMO cycles, which are thought to last 65-70 years, may play a part in the temperature rise, fall and rise again seen during the 20th Century.

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As it currently stands, the UN Framework Convention on Climate Change has set a target of limiting the rise in global mean temperature to 2C (3.6F) above pre-industrial levels.

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Research has shown that the body's temperature tends to rise by a few degrees in the afternoon, warming the muscles and connective tissues and resulting in a slight improvement in your performance capabilities.

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Many legal policy experts, including the Washington Legal Foundation, have long insisted that the debate over the effects of carbon emissions on the rise in global temperature is strictly a political question that should not be decided in the courts.

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Now we know what we get purely from having the CO2 in the atmosphere, something like a 0.7 oF rise in temperature.

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But the report warned that just a one-degree centigrade rise in average temperature would reduce this to 500 viable slopes, and that this was likely to happen between 2020-2025.

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Many low-lying nations have used the UN conference, which is currently under way in Doha, to call for a threshold temperature rise less than 2C, arguing that even a 2C rise will jeopardise their future.

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