Tag: severe

Size Does Matter, Research Suggests

  • Some scientists blame global warming for larger and more intense hurricanes. (Photo courtesy of NASA)

When it comes to hurricanes,
apparently size does matter.
New research suggests the bigger
the storm, the more tornadoes it
spawns. Tanya Ott reports:

Transcript

When it comes to hurricanes,
apparently size does matter.
New research suggests the bigger
the storm, the more tornadoes it
spawns. Tanya Ott reports:

Last year, Hurricane Ike ripped through Texas and the Midwest. It was a
relatively weak Category 2 storm. But it spun off a lot of tornadoes and
caused 32 billion dollars in damage.

Researchers at the Georgia Institute of
Technology say they have a new model for predicting how many tornadoes a
hurricane will cause. Dr. Judith Curry says storm size – not intensity –
is the key.

“A lot of time people just think, oh it’s Category 5 or
it’s a Category 2, and they immediately calculate the risk to damage in
their head and the 5 is bad ande 2 isn’t so bad.”

But, Curry says, sometimes a 5 can be small and tight, and a 2,
especially one like Ike, can be big and produce a lot of tornadoes.

The study is published in this month’s Geophysical Research Letters.

Some scientists blame global warming for larger and more intense hurricanes.

For The Environment Report, I’m Tanya Ott.

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Hurricane Season Is Here

  • Monday, June 1 is the official start day of hurricane season (Photo courtesy of NASA)

Today is the first day of the Hurricane season,

but we’ve already seen a tropical depression off

the Atlantic coast. Lester Graham reports:

Transcript

Today is the first day of the Hurricane season, but we’ve already seen a tropical depression off the Atlantic coast. Lester Graham reports:

The Weather Channel noted that tropical depression was farther North earlier than any potential hurricane in the 159 years of storm records.

You can’t help but wonder whether climate change is having an effect here.

Jeff Masters is a former hurricane hunter, now with Weather Underground.

He says that’s not what’s happening. He says this storm was getting stronger by following the the gulf stream.

“There just happened to be a little blip of warm water associated with the gulf stream that this storm took advantage of. It was a very small storm so it was very lucky. It was able to stay over the warmest part of the gulf stream.”

Masters says it’ll be decades before we’ll be able to tell if climate change is actually affecting hurricanes.

Forecasts this year call for a pretty average hurricane season.

Masters says an El Niño event could occur later. That’s important, since the number and intensity of Atlantic storms are usually reduced during an El Niño year.

For The Environment Report, this is Lester Graham.

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Relief on the Horizon for Allergy Sufferers?

  • To those who may recoil in terror from this picture, relief from peanut allergies may just be a vaccine away. (Photo by Mike Froese)

A new vaccine that reduces food allergies in dogs could
some day help people who suffer dangerous reactions to food like
peanuts, milk and wheat. The vaccine is also more evidence in
support of the so-called “hygiene hypothesis.” The Great Lakes
Radio Consortium’s Tracy Samilton reports:

Transcript

A new vaccine that reduces food allergies in dogs could some day help people who suffer
dangerous reactions to food like peanuts, milk and wheat. The vaccine is also more
evidence in support of the so-called “hygiene hypothesis.” The Great Lakes Radio
Consortium’s Tracy Samilton reports:


Allergies to foods like peanuts have become much more common over the past 20 years.
Some researchers believe it’s because, as a hygiene-conscious society, we’re no
longer exposing our bodies to infections that stimulate the immune system and protect
us from allergies. Pediatrician Dale Umetsu of Stanford University mixed a component
of Listeria bacterium and peanuts into a vaccine. He then gave it to dogs
with allergies so severe that one peanut made them sick.


“After the treatment, the dogs could tolerate up, on average, to 30 to 40 peanuts,
so this was quite an increase and the effect lasted several months, at least,
after the treatment.”


Umetsu says it could be five years or more before a vaccine is available for human trials.
A vaccine could help millions of people with food allergies.


For the Great Lakes Radio Consortium, I’m Tracy Samilton.

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