Earth ChangesS


Igloo

Swedish climatologist explains that the climate is self-regulated and the outlook is very cold

Xuefei Chen
People's Daily Online
Thu, 22 Apr 2010 18:50 UTC
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Swedish climate expert Dr. Fred Goldberg has said that carbon dioxide is not the main cause of the global warming. The climate change is not affected by human action, but mainly by the solar activities and ocean currents such as PDO (Pacific Decadal oscillations). He even predicts that the earth is going to experience colder winters in the following years or even decades.

Goldberg stressed that man should separate the concept of climate change from environmental issues. He holds that climate change is natural and caused by the sun activity, but the urban heat island effect and environmental problems are mainly caused by human activities and behavior. In an exclusive interview with People's Daily Online, Goldberg explained his ideas.

History of climate on earth

"We could have an ice age any time," Dr. Goldberg says, "Over the past one million years, we have experienced eight ice ages. Eighty percent of the last million years was ice age. We are lucky to live in this short inter-glacial period."
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Arrow Up

Flashback Organic Agriculture Beats Biotech at its Own Game

Timothy LaSalle
Huffington Post
Mon, 17 Aug 2009 04:05 UTC
Organic agriculture's recently recognized benefits for improving food security don't depend on a boost from genetically modified (GM) technology. While the chemically-based systems that GM requires could be cleaned up with organic techniques, there's no clear reason to degrade organic standards to accept the downsides that come with biotech-produced crops as they are currently managed.

Recently, there have been renewed efforts to pressure organic agriculture to abandon one of its foundational principles and accept genetically modified crops. While there may be nothing inherently wrong with contemplating a theoretical overlap between biotech crop genetics and organic farming systems, there's not a compelling set of reasons to do so, either.
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Bizarro Earth

Italy: Ischia volcano eruption concerns


The Press Association
Tue, 27 Apr 2010 21:26 UTC
The volcano of Ischia, a resort island famed for its thermal waters off the coast of Naples, could potentially erupt, Italian disaster experts said.

Guido Bertolaso, the head of Italy's civil protection agency, said that while Vesuvius was more commonly considered the nation's most worrisome volcano, Ischia, which last erupted 700 years ago, was experiencing a build-up of magma.

No eruption is imminent, but "if I had to say which is the volcano with the most loaded gun barrel, I'd say it's not Vesuvius but the island of Ischia", Mr Bertolaso said in Rome.

Ischia, a short hydrofoil trip from the port of Naples and the chic vacation island of Capri, is often overrun with Italian and foreign visitors seeking to ease their aches and pains in pools filled with thermal waters pumped in from the sea.

Ischia's "magma chamber is loading up", said Mr Bertolaso, whose agency's mandate includes both disaster relief and prevention. An eruption on Ischia "could be worse than a hypothetical Vesuvius eruption", he said.
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Fish

Girl lucky to be alive after sting by deadly jellyfish


Associated Press
Tue, 27 Apr 2010 20:56 UTC
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© AFP/File/Lawrence BartlettA sign outside a hotel warns swimmers of box jellyfish, in Darwin. A 10-year-old Australian girl who survived being stung by the world's most venomous creature, may have rewritten medical history, an expert said Tuesday
A 10-year-old Australian girl who survived being stung by the world's most venomous creature, the deadly box jellyfish, may have rewritten medical history, an expert said Tuesday.

Schoolgirl Rachael Shardlow lost consciousness after being badly stung by the jellyfish while swimming in a river in eastern Queensland state with her brother in December, but lived to tell the tale.

"When I first saw the pictures of the injuries I just went, 'you know to be honest, this kid should not be alive'," said Jamie Seymour, professor of zoology and tropical ecology at James Cook University.

"I mean they are horrific. Usually when you see people who have been stung by box jellyfish with that number of the tentacle contacts on their body, it's usually in a morgue," he told public broadcaster, the ABC.

Often deadly, the box jellyfish has long, trailing tentacles and is able to squeeze through even the smallest of nets as it is only the size of a fingernail.
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Evil Rays

Keeping Track of Grizzly Bears in the Northern Rockies


US Geological Survey
Tue, 27 Apr 2010 20:26 UTC
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© Kim Keating , U.S. Geological Survey A female grizzly bear family rambles through Yellowstone National Park. USGS researchers study population dynamics of these bears, as well as hazards they face. This information is used by resource managers and decision makers.
Rural areas with human development can lessen grizzly bear survival in the Greater Yellowstone Ecosystem, and innovative bear rub tree surveys can successfully monitor grizzly population dynamics in the Northern Continental Divide Ecosystem, suggest two new studies released by the U.S. Geological Survey in the Journal of Wildlife Management.

The studies highlight dynamic tools to assist in conservation and management of grizzly bears in the Greater Yellowstone and Northern Continental Divide ecosystems, the two largest strongholds for grizzly populations in the contiguous United States.

While previous studies identified roads and developed areas as primary hazards, the new findings also indicate that rural home development and areas open to fall ungulate hunting can negatively affect bear survival in the Greater Yellowstone Ecosystem. Scientists used 21 years of grizzly bear tracking information to develop a model that predicts areas hazardous to grizzlies.

"Our research shows that bears living in areas with human development and activity including roads, campgrounds, lodges, and homes have a greater chance of dying than bears living in more remote and secure areas," said Chuck Schwartz, a USGS wildlife biologist and lead of the Interagency Grizzly Bear Study Team.
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Bizarro Earth

Violence of Baja quake seen in desert fish video


US Geological Survey / Associated Press
Tue, 27 Apr 2010 19:50 UTC
Death Valley National Park - The violence of this month's big Baja California earthquake was captured in scientists' video of tiny fish that live in a deep Mojave Desert cavern.

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Question

Hundreds of Crab Shells Show Up on North Oregon Coast


Oregon Beach Connection.net
Mon, 26 Apr 2010 00:16 UTC
This article has been removed from our database due to receipt of the following notice:
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Bizarro Earth

Volcano spews sand, ash over Guatemala


Agence France-Presse
Tue, 27 Apr 2010 10:24 UTC
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© photovolcanica.comOverview of Santiaguito lava dome complex from Santa Maria, Dec. 2007
The Santiaguito volcano showered sand and ash on Monday over a large area of western Guatemala in an "unusual" and "violent" display, the national seismological institute said.

The institute said winds were carrying the ash in a northeasterly direction from the 2,500 metre (7,500 foot) high volcano in the province of Quetzaltenango, 206 kilometres west of the capital.

The ash plume spread across six provinces, raising fears of damage to crops, the institute said while classes were suspended at schools in three provinces.

Santiaguito's worst eruption occurred in 1929 when 2500 people were killed.

Comment: For more information on this volcano see this link.

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Padlock

Best of the Web: Remember that Ash Cloud? It Didn't Exist

Sean Poulter
The Daily Mail
Mon, 26 Apr 2010 02:28 UTC
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No ash cloud here: Deep blue skies over London April 16. So, if planes weren't grounded for 6 days because of the "ash cloud"...
Britain's airspace was closed under false pretences, with satellite images revealing there was no doomsday volcanic ash cloud over the entire country.

Skies fell quiet for six days, leaving as many as 500,000 Britons stranded overseas and costing airlines hundreds of millions of pounds.

Estimates put the number of Britons still stuck abroad at 35,000.

However, new evidence shows there was no all-encompassing cloud and, where dust was present, it was often so thin that it posed no risk.

The satellite images demonstrate that the skies were largely clear, which will not surprise the millions who enjoyed the fine, hot weather during the flight ban.

Jim McKenna, the Civil Aviation Authority's head of airworthiness, strategy and policy, admitted: 'It's obvious that at the start of this crisis there was a lack of definitive data.

'It's also true that for some of the time, the density of ash above the UK was close to undetectable.'
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Magnify

Mice Make Own Morphine

Janelle Weaver
Nature News
Mon, 26 Apr 2010 15:03 UTC
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© N. Grobe & N. WeirMice can synthesize morphine from various intermediate chemicals.
Mammals could have opiate factories.

Mammals may possess the biochemical machinery to produce morphine - a painkiller found in the opium poppy, according to a new study.

Meinhart Zenk of the Donald Danforth Plant Science Center in St Louis, Missouri, and colleagues detected traces of morphine in the urine of mice after injecting chemical precursors of the drug. They report their findings today in the Proceedings of the National Academy of Sciences.[1]

Like other opioids, morphine is a potent, potentially addictive pain reliever. Scientists have speculated for decades that animals naturally synthesize morphine because specialized receptors in the brain respond to the drug. Trace amounts of morphine had been found in human urine and cells.[2] But studies using living animals yielded inconclusive results because of possible contamination from external sources of morphine in their food or in the environment.
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