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Saturday, 25 August 2012

Climate change and weather news


Drought worsens in Plains despite cooler temperatures, holds steady elsewhere in U.S.
 


24 August, 2012

While other corn growers already have knocked down their drought-ravaged crops to feed them to livestock, Nebraska farmer Doug Nelson still waits for his maize to mature, well aware it won't be a banner year.

On the day a new report suggested the nation's worst dry spell in at least a generation is deepening in America's breadbasket, Nelson said Thursday he expects to harvest anywhere from nothing to 43 bushels per acre on his unirrigated acreage, a far cry from the 120 to 140 bushels he'd typically get. On the irrigated land, he could see 150 to 200 bushels an acre; in previous years, Nelson would see a minimum of 180 bushels.



Wildfires spreading in California


UPI,
23 August, 2012

Fires continued to burn across the U.S. West Thursday, including about a dozen started by weekend lightning in California.

In northern California, the Ponderosa fire spread across 2,000 more acres overnight, the San Francisco Chronicle reported. The fire, which was started by lightning Saturday, has charred almost 30,000 acres and destroyed at least 84 buildings, said Daniel Berlant, a Cal Fire spokesman.



Arctic sea ice levels to reach record low within days


24 August, 2012

Arctic sea ice is set to reach its lowest ever recorded extent as early as this weekend, in "dramatic changes" signalling that man-made global warming is having a major impact on the polar region.

With the melt happening at an unprecedented rate of more than 100,000 sq km a day, and at least a week of further melt expected before ice begins to reform ahead of the northern winter, satellites are expected to confirm the record – currently set in 2007 – within days.

"Unless something really unusual happens we will see the record broken in the next few days. It might happen this weekend, almost certainly next week," Julienne Stroeve, a scientist at the US National Snow and Ice Data Centre (NSIDC) in Boulder, Colorado, told the Guardian.

"In the last few days it has been losing 100,000 sq km a day, a record in itself for August. A storm has spread the ice pack out, opening up water, bringing up warmer water. Things are definitely changing quickly."



Alarming’ climate change threatens the future of many bat species


24 August, 2012

Climate change threatens the future of a significant number of bat species.

Bats have already suffered due to changing temperatures, according to a study published in Mammal Review.

That change is "alarming" say the report's authors, but worse is expected as temperatures rise further.

The foraging and feeding, roosting, range sizes and reproduction of bats will all be affected, while extreme weather and disease will also impact many bat species, they say.



Brazil's biggest city suffering with no rain


23 August, 2012

Brazil's biggest city is experiencing one of its driest spells in years after more than a month with almost no rain.

Neide Oliveira of the National Meteorological Institute says in the month through Thursday just one-hundredth of an inch (0.3 millimeters) of rain has fallen on Sao Paulo. The average for this time of year is 1.5 inches (38 millimeters).

Oliveira says rain isn't expected for at least another week because high pressure hot and dry air is blocking cold fronts that normally bring rain from the ocean.

The city's humidity index plunged to 10 percent this week, the lowest in three years.

Officials are urging people to drink extra water and take special care while exercising. Hospitals say they've seen a spike in patients complaining of respiratory ailments






High price of corn forcing U.S. farmers to feed candy to livestock

24 August, 2012

At Mayfield's United Livestock Commodities, owner Joseph Watson is tweaking the recipe for success.

"Just to be able to survive, we have to look at other sources for nutrition," he said.

His 1,400 cattle are no longer feeding off corn. The prices, Watson said, are too high to keep in stock. So earlier this year, he began to buy second hand candy.


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