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Earth

Turbulent weather ahead for southern US

17 September 2008

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Expected temperature and precipitation fluctuations for 2011-2040 and 2041-2070

Texans, hold onto your hats: it’s going to be a bumpy ride.

According to Noah Diffenbaugh of Purdue University in West Lafayette, Indiana, and colleagues the weather in southern California, western Texas and northern Mexico is going to become increasingly unpredictable whatever we do. This is true in both a best-case scenario in which new technology curbs future emissions, and if the worst happens and population growth fuels a doubling in carbon dioxide levels (see maps).

Residents in these areas will see pronounced fluctuations in temperature and rainfall from year…

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