The gametime temperature of 30 degrees was 54 below the start temperature for the 2-1 loss at Honduras last month, when the Americans withered in the heat and humidity as the match went on.

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He therefore gave his models a series of decade-long tests beginning with the real climatic conditions (level of solar radiation, ocean temperature and so on) on 80 different start dates from 1982 to 2001.

ECONOMIST: Modelling the climate: Tomorrow and tomorrow | The

For instance, the Hadley Centre for climate research in the UK, published research only this week suggesting that forests will speed up climate change in the future, as the soil will start to emit more greenhouse gases than the trees absorb as the temperature builds up.

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According to Nest, the thermostat takes about a week to start picking up on your routine, at which point it adjusts the temperature accordingly.

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Touch sensors in the fingers and the palm will also pick up vibrations, temperature and surface textures, McLoughlin says, although tests on these won't start until next year.

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