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Groundwater Depletion in Semiarid Regions of Texas and California Threatens US F

August 08, 2018, 02:38:10 am suzytr says: Hello, any good churches in the Sacto, CA area, also looking in Reno NV, thanks in advance and God Bless you Smiley
January 29, 2018, 01:21:57 am Christian40 says: It will be interesting to see what happens this year Israel being 70 years as a modern nation may 14 2018
October 17, 2017, 01:25:20 am Christian40 says: It is good to type Mark is here again!  Smiley
October 16, 2017, 03:28:18 am Christian40 says: anyone else thinking that time is accelerating now? it seems im doing days in shorter time now is time being affected in some way?
September 24, 2017, 10:45:16 pm Psalm 51:17 says: The specific rule pertaining to the national anthem is found on pages A62-63 of the league rulebook. It states: “The National Anthem must be played prior to every NFL game, and all players must be on the sideline for the National Anthem. “During the National Anthem, players on the field and bench area should stand at attention, face the flag, hold helmets in their left hand, and refrain from talking. The home team should ensure that the American flag is in good condition. It should be pointed out to players and coaches that we continue to be judged by the public in this area of respect for the flag and our country. Failure to be on the field by the start of the National Anthem may result in discipline, such as fines, suspensions, and/or the forfeiture of draft choice(s) for violations of the above, including first offenses.”
September 20, 2017, 04:32:32 am Christian40 says: "The most popular Hepatitis B vaccine is nothing short of a witch’s brew including aluminum, formaldehyde, yeast, amino acids, and soy. Aluminum is a known neurotoxin that destroys cellular metabolism and function. Hundreds of studies link to the ravaging effects of aluminum. The other proteins and formaldehyde serve to activate the immune system and open up the blood-brain barrier. This is NOT a good thing."
September 19, 2017, 03:59:21 am Christian40 says: bbc international did a video about there street preaching they are good witnesses
September 14, 2017, 08:06:04 am Psalm 51:17 says: bro Mark Hunter on YT has some good, edifying stuff too.
September 14, 2017, 04:31:26 am Christian40 says: i have thought that i'm reaping from past sins then my life has been impacted in ways from having non believers in my ancestry.
September 11, 2017, 06:59:33 am Psalm 51:17 says: The law of reaping and sowing. It's amazing how God's mercy and longsuffering has hovered over America so long. (ie, the infrastructure is very bad here b/c for many years, they were grossly underspent on. 1st Tim 6:10, the god of materialism has its roots firmly in the West) And remember once upon a time ago when shacking up b/w straight couples drew shock awe?

Exodus 20:5  Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;
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Author Topic: Groundwater Depletion in Semiarid Regions of Texas and California Threatens US F  (Read 3330 times)
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« on: October 12, 2014, 07:34:16 am »

Not Just California: Droughts Extend Across Americas

Say “drought” and Americans are likely to think California, but the Golden State is hardly alone when looking across the Western Hemisphere: A dry spell has killed cattle and wiped out crops in Central America, parts of Colombia have seen rioting over scarce water, and southern Brazil is facing its worst dry spell in 50 years.

In the U.S., the few who have taken notice of this wider water scarcity include a former director of the U.S. Geological Survey. Now editor-in-chief of the journal Science, Marcia McNutt last month penned an editorial highlighting what she called “a drought of crisis proportions” across the Americas.

Worst hit has been Central America, where drought has created food shortages for 2.5 million people, most of them “subsistence farmers and families in highly food-insecure areas,” says Miguel Barreto, regional program manager for the U.N.’s World Food Program.

Droughts, and along with them plant diseases, are happening more frequently, says Lorena Aguilar, regional technical manager for the Famine Early Warning Systems Network, funded by USAID.

“The previous two years saw drought and this is the third,” she says, adding that this year was also the driest for most of Central America in 30 years of recordkeeping.

One of those diseases is known as coffee rust, which has reduced harvests as well as supplemental income for many subsistence farmers, Barreto says, “creating a critical situation in the poorest populations.”

The U.S. recently pledged $10 million in aid, but the WFP said it needs $65 million to help drought victims and to replenish aid given out earlier due to the coffee rust.

Drought reaches farther south as well:

    Panama: The head of the Panama Canal warned that the biggest ships might not be let through in early 2015 if rainfall doesn’t restore water levels at the lakes that feed the canal’s locks.
    Colombia: Some northern areas where rain hasn’t fallen in two years have seen riots over water.
    Venezuela: Water rationing became mandatory in some areas.
    Bolivia: Thousands of forest fires were attributed to the worst drought in 30 years.
    Brazil: A third of southern Brazil’s 21 million people face water shortages. Parts of Sao Paulo, Brazil’s biggest city, have been rationing water since February.

In Central America, heavy rains since late September “helped alleviate” the drought in some areas, says Wassila Thiaw, international team lead at the U.S. Climate Prediction Center. But, he adds, that’s also meant crop damage in parts of Guatemala and El Salvador.

Short term, Thiaw says, the forecast across Latin America has improved, though northern Brazil could see a rainfall deficit through January.

A critical variable is El Nino, the periodic warming of the Pacific Ocean that impacts weather globally and, in Central America’s case, dries out areas along the Pacific Coast.

“We do not have an El Nino yet,” says Thiaw, although eastern Pacific waters are warmer than normal.

Longer term, a big question is how global warming might impact droughts.

A study published in January in Nature Climate Change concluded that “increased heating from global warming may not cause droughts but it is expected that when droughts occur they are apt to set in quicker and be more intense.”

Other studies have cited specific examples of that. In Latin America, Brazil’s southern Amazonia has seen its dry season become three weeks longer in the last 30 years, a study last year found.

But some drought studies have come to conflicting conclusions, and a 2010 study even had to be corrected in 2012 to better factor in precipitation and evaporation variables.

“There is still a lot of background variability in the climate system that is masking the global warming signal,” says Ben Cook, a NASA climate scientist and lead author of a recent paper that concluded Western North America, Central America and the Amazon will see “robust” drying this century. “So we can say that there is some evidence that warming is making droughts worse in these areas, but there is still a lot of uncertainty.”

It’s even tougher to zero in on a region like Central America to determine if climate models predicting a drier future have held up.

“I’d say it is too soon to tell, in large part because of the amount of variability in the region’s climate system combined with the limitations of existing climate observations,” says Kevin Anchukaitas, a climate researcher specializing in Central America for the Woods Hole Oceanographic Institution.

For Barreto, the WFP’s regional program manager, the danger of a warming world is not just about drought but other “more intense and frequent extreme weather” — especially hurricanes — across Central America and the Caribbean.

The region also has that more immediate concern: El Nino. The National Weather Service said in its monthly forecast that a weak El Nino might develop over the next month or two and last into next spring. The question is whether that would bring enough rain.

“It’d be very rare to have drought four years in a row,” says Aguilar, “but then again we don’t know what El Nino will do.”

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