News / Science & Technology

US Drought Linked to Climate Change

US Drought Linked to Climate Changei
|| 0:00:00
X
Rosanne Skirble
July 28, 2012 2:33 AM
As one of the worst droughts ever continues to grip major portions of the United States, a new study links this summer’s record-setting dry spell, and other extreme weather events, to the world’s warming climate. VOA's Rosanne Skirble reports on the implications.

US Drought Linked to Climate Change

Rosanne Skirble
As one of the worst droughts ever continues to grip major portions of the United States, a new study links this summer’s record-setting dry spell, and other extreme weather events, to the world’s warming climate.   
    
Parched earth

In Texas, the earth is parched. Rivers have dried up, and pasture land has turned brown from the heat. It’s been this way since January 2011. The southwestern state is the fourth largest producer of rice in the United States but the drought could cut production by half.

"Our total agri-income, farm gate value of our commodities here, were usually right around $290 million, and a large percentage of that comes from rice production," Texas agricultural extension agent Peter McGuill says. "You’re talking about a big chunk of money that’s not going to be circulating within the economy.”

James Bradbury, a climate scientist with the World Resources Institute, a global environmental think tank, explains that La Nina, a natural weather pattern that periodically cools the Pacific Ocean, helped trigger the drought by bringing warmer, dryer weather to the American South, which has been hardest hit by the drought.
US Drought Linked to Climate Change
US Drought Linked to Climate Changei
|| 0:00:00
...
 
🔇
X

“Time will tell the extent to which rising temperatures and global climate change contributed to this specific event and the severity of it," Bradbury says. "I think there is a good likelihood that the temperatures that we’re seeing and the heat wave that we’re seeing is all consistent with a warmer world, that that's exacerbating these drought conditions."

Human influence

Peter Stott, who leads the climate monitoring team for the Met Office Hadley Centre, a climate research institution in southwest Britain, says La Nina is only part of the story. He co-authored the American Meteorological Society study which links climate change with the Texas drought and other extreme weather events.   

“We did find clear evidence for human influence on the Texas heat wave and also in the very unusual temperatures we had in the United Kingdom in 2011,” he says.  
 
The study finds the 2011 Texas drought was 20 times more likely to occur than in the 1960s as a result of human-induced climate changing emissions in the atmosphere. The heat wave last November in England was 62 times more likely to have occurred than 50 years ago, according to the report.  

While not all extreme weather events can be linked to climate change, Stott and his colleagues found evidence that they are more probable in a warmer world.

“What we must remember is that it is the combination of natural variations of climate that is important here," Stott says. "We saw that in La Nina in Texas, but, over and above that, there is this additional climate effect that can and has indeed in the last year led to a greater vulnerability to extreme weather.”

Worsening conditions

Drought continues to parch other parts of the U.S., sparking wildfires and damaging crops in one third of the nation’s counties. U.S. scientists predict that these conditions could even get worse in the coming months, which doesn’t bode well for Iowa farmer Tom Zaputil’s corn crop, which hasn’t had a significant rain since June.

"This here is strictly dryness here," Zaputil says, referring to his crop. "These stalks will cannibalize themselves to pull moisture out of it in order to feed that ear, and these will get brittle and very susceptible to high wind damage later on in the season.”

Stott says the new findings are a wake-up call that the adverse impact of a warming climate can be reduced by acting now to cut carbon-dioxide emissions from cars, factories and buildings.

“So hopefully people can understand the implication of future climate change and relate that to what’s happening at the moment.”

Stott says the study is the first of what he hopes will be annual reports examining the connection between global warming and specific extreme weather events.

You May Like

Ebola Death Toll Nears 5,000 as Virus Advances

West Africa bears heaviest burden; Mali toddler’s death raises new fears More

Jordan’s Battle With Islamic State Militants Carries Domestic Risks

There are Western concerns Islamic State militants soon may unleash offensive in kingdom that could create upheaval - though nation has solid intel, grip on banking system More

Asian-Americans Enter Public Office in Record Numbers

A steady deepening engagement in local politics pays off for politicians like Chinese-American Judy Chu More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
After Decades of Pressure, Luxembourg Drops Bank Secrecy Rulesi
X
October 21, 2014 12:20 AM
European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video US ‘Death Cafes’ Put Focus on the Finale

In contemporary America, death usually is a topic to be avoided. But the growing “death café” movement encourages people to discuss their fears and desires about their final moments. VOA’s Jerome Socolovsky reports.
Video

Video Ebola Orphanage Opens in Sierra Leone

Sierra Leone's first Ebola orphanage has opened in the Kailahun district. Hundreds of children orphaned since the beginning of the Ebola outbreak face stigma and rejection with nobody to care for them. Adam Bailes reports for VOA about a new interim care center that's aimed at helping the growing number of children affected by Ebola.
Video

Video Young Nairobi Tech Innovator on 'Track' in Security Business

A 24-year-old technology innovator in Nairobi has invented a tracking device that monitors and secures cars. He has also come up with what he claims is the most robust audio-visual surveillance system yet. As Lenny Ruvaga reports from the Kenyan capital, his innovations are offering alternative security solutions.
Video

Video Latinas Converting to Islam for Identity, Structure

Latinos are one of the fastest growing groups in the Muslim religion. According to the Pew Research Center, about 6 percent of American Muslims are Latino. And a little more than half of new converts are female. VOA’s Carolyn Presutti travelled to Miami, Florida -- where two out of every three residents is Hispanic -- to learn more.
Video

Video Exclusive: American Joins Kurds' Anti-IS Fight

The United States and other Western nations have expressed alarm about their citizens joining Islamic State forces in Syria and Iraq. In a rare counterpoint to the phenomenon, an American has taken up arms with the militants' Syrian Kurdish opponents. Elizabeth Arrott has more in this exclusive profile by VOA Kurdish reporter Zana Omer in Ras al Ayn, Syria.
Video

Video South Korea Confronts Violence Within Military Ranks

Every able-bodied South Korean male between 18 and 35 must serve for 21 to 36 months in the country’s armed forces, depending upon the specific branch. For many, service is a rite of passage to manhood. But there are growing concerns that bullying and violence come along with the tradition. Reporter Jason Strother has more from Seoul.
Video

Video North Carolina Emerges as Key Election Battleground

U.S. congressional midterm elections will be held on November 4th and most political analysts give Republicans an excellent chance to win a majority in the U.S. Senate, which Democrats now control. So what are the issues driving voters in this congressional election year? VOA National Correspondent Jim Malone traveled to North Carolina, one of the most politically competitive states in the country, to find out.
Video

Video Comanche People Maintain Pride in Their Heritage

The Comanche (Indian nation) once were called the “Lords of the Plains,” with an empire that included half the land area of current day Texas, large parts of Oklahoma, New Mexico, Kansas and Colorado.The fierceness and battle prowess of these warriors on horseback delayed the settlement of most of West Texas for four decades. VOA’s Greg Flakus reports from Lawton, Oklahoma, that while their warrior days are over, the 15,000 members of the Comanche Nation remain a proud people.
Video

Video Turkey Campus Attacks Raise Islamic Radicalization Fears

Concerns are growing in Turkey of Islamic radicalization at some universities, after clashes between supporters of the jihadist group Islamic State (IS) or ISIS, and those opposed to the extremists. Pro-jihadist literature is on sale openly on the streets of Istanbul. Critics accuse the government of turning a blind eye to radicalism at home, while Kurds accuse the president of supporting IS - a charge strongly denied. Henry Ridgwell reports from London.

All About America

AppleAndroid