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Experts: Man, nature share typhoon tragedy blame

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Posted: Tuesday, November 12, 2013 4:30 am | Updated: 7:52 am, Wed Nov 13, 2013.

WASHINGTON — Nature and man together cooked up the disaster in the Philippines.

Geography, meteorology, poverty, shoddy construction, a booming population, and, to a much lesser degree, climate change combine to make the Philippines the nation most vulnerable to killer typhoons, according to several scientific studies.

And Typhoon Haiyan was one mighty storm.

Haiyan slammed the island nation with a storm surge two stories high and some of the highest winds ever measured in a tropical cyclone — 195 mph as clocked by U.S. satellites, or 147 mph based on local reports. An untold number of homes were blown away, and thousands of people are feared dead.

“You have a very intense event hitting a very susceptible part of the world. It’s that combination of nature and man,” said MIT tropical meteorology professor Kerry Emanuel. “If one of those ingredients were missing, you wouldn’t have a disaster.”

The 7,000 islands of the Philippines sit in the middle of the world’s most storm-prone region, which gets some of the biggest typhoons because of vast expanses of warm water that act as fuel and few pieces of land to slow storms down.

Half of the storms on an informal list of the strongest ones to hit land in the 20th and 21st centuries ended up striking the Philippines, according to research by Jeff Masters, meteorology director of the Weather Underground.

Most powerful

Storms often hit after they’ve peaked in strength or before they get a chance to, but Haiyan struck when it was at its most powerful, based on U.S. satellite observations, Emanuel said.

Humans played a big role in this disaster, too — probably bigger than nature’s, meteorologists said. University of Miami hurricane researcher Brian McNoldy figures that 75 to 80 percent of the devastation can be blamed on the human factor.

Meteorologists point to extreme poverty and huge growth in population — much of it in vulnerable coastal areas with poor construction, including storm shelters that didn’t hold up against Haiyan.

More than 4 out of 10 Filipinos live in a storm-prone vulnerable city of more than 100,000, according to a 2012 World Bank study.

The Haiyan-devastated provincial capital of Tacloban nearly tripled from about 76,000 to 221,000 in just 40 years.

About one-third of Tacloban’s homes have wooden exterior walls. And 1 in 7 homes have grass roofs, according to the census office.

Those factors — especially flimsy construction — were so important that a weaker storm would have still caused almost as much devastation, McNoldy said.

“You end up with these kind of urban time bombs, where cities have doubled, tripled, quadrupled in size in 50 years” without good building standards, said Richard Olson, director of the Extreme Events Institute at Florida International University.

Scientists said man-made global warming contributed to rising seas and a general increase in strength in the most powerful tropical cyclones. But they won’t specifically apply these factors to Haiyan, saying it is impossible to attribute single weather events, like the typhoon, to climate change.

A 2008 study found that in the northwestern Pacific where Haiyan formed, the top 1 percent of the strongest tropical cyclones over the past 30 years are getting on average about 1 mph stronger each year — a phenomenon some scientists suspect is a consequence of global warming.

Stronger storms

“The strongest storms are getting stronger” said study co-author James Kossin of the National Climatic Data Center. Haiyan “is what potentially could be a good example of the kind of the things we’re finding.”

Similarly, the Philippines has seen its sea rise nearly half an inch in the past 20 years — about triple the global increase, according to R. Steven Nerem of the University of Colorado. Higher sea levels can add to storm surge, creating slightly greater flooding.

“The Philippines is one of the most disaster-prone places on Earth,” said Kathleen Tierney, director of the Natural Hazards Center at the University of Colorado. “They’ve got it all. They’ve got earthquakes, volcanoes, floods, tropical cyclones, landslides.”

© 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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3 comments:

  • Bubba posted at 1:23 pm on Tue, Nov 12, 2013.

    Bubba Posts: 771

    liars and hoaxers

     
  • DawgDave posted at 7:51 am on Tue, Nov 12, 2013.

    DawgDave Posts: 208

    I don't believe it either. The seas have risen 1/2" over the past two decades there. What do they think we are - fools to believe this garbage.
    I have family and friends in The Philippines. Yes - it is a poor country but this writer is full of what comes out of the south end of a north facing horse. I doubt he has ever been there. The larger cities are very modern.

     
  • Eliza posted at 5:30 am on Tue, Nov 12, 2013.

    Eliza Posts: 905

    @ Scientists said man-made global warming contributed to rising seas and a general increase in strength in the most powerful tropical cyclones.
    ----------------

    I don't believe the above, accusing 'man-made' global warming reasons for any of the storm damage or the storm itself.

     

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