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Oct
2
2009
Population growth blamed for recent water shortages in southeastern US
Buy viagra from canada, From 2005 to 2007, a drought in the southeastern US crippled several states, spurring legal battles over water and causing billion dollar-plus losses in the agricultural industry. παραγγείλετε online viagra, But compared to earlier droughts, this one wasn’t that severe, order viagra c.o.d., Generic viagra, scientists report in the Journal of Climate. The problem is that the region’s population has grown, buy viagra without prescription, Buy viagra c.o.d., they say, straining water resources even when droughts are relatively mild.
The team analyzed tree-ring records and found that the Southeast experienced long droughts in the 1500s and 1800s, pharmacie viagra bon marché, Kansas KS Kans. , one lasting about two decades. By comparison, lowest price viagra, Viagra online stores, the twentieth century has been fairly wet, they say, φτηνές φαρμακείο viagra. North Dakota ND , The 2005-07 drought was “a typical event” – no worse than another recent drought from 1998-2002 – and does not appear to be linked to climate change, the team concludes.
What has changed is the population, Idaho ID , Købe viagra, they say. The number of people in Georgia, for instance, grew by nearly 50 percent between 1990 and 2007, buy viagra from canada. The higher demand is likely causing droughts to have a bigger impact on water supply now than they did before, ordering viagra pills, Order viagra, the authors say.
Climate models are predicting increased precipitation in the Southeast, but a corresponding rise in evaporation could lead to a net drying effect, comprare viagra. Billig kaufen viagra, In short, “climate change should not be counted on to solve the Southeast’s water woes, buy viagra online cheap, South Dakota SD , ” the team writes. – Roberta Kwok
Source: Seager, acquistare online viagra, Nevada NV Nev. , R., Tzanova, buy viagra no prescription, Jotta viagra verkossa, A., & Nakamura, Missouri MO Mo. , Viagra, J. (2009). Drought in the Southeastern United States: Causes, Variability over the Last Millennium, and the Potential for Future Hydroclimate Change Journal of Climate, 22 (19) DOI: 10.1175/2009JCLI2683.1
Image © Nikada, iStockPhoto.com
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There aren’t enough babies being born in the U.S. for 50% growth. Where did they move from? How is the water where they came from?
Hi Paul,
Thanks for your comment. The authors attribute the population growth primarily to “in-migration”, but they don’t say where the people are coming from. It’s not clear from this particular study whether water availability has changed in other parts of the US.
Roberta