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Extreme Temperatures

Meteor

Did a comet trigger a mini Ice Age?

Richard Ingham
Agence France-Presse
Mon, 05 Apr 2010 19:45 UTC
Image
© U.S. Geological Survey
A sudden plunge of global temperatures 12,900 years ago may have been caused by a comet impact, a British researcher argues.
Paris- A sudden plunge of global temperatures at the dawn of human civilisation may have been caused by a comet impact, a British researcher argues.

Known as 'the Younger Dryas', it has been also called the Big Freeze and the Last Blast of the Ice Age - but for researchers trying to understand the Earth's ancient climate, it's one of the big mysteries of the field.

Around 12,900 years ago, Earth was on a steadily warming trend after almost 100,000 years of harsh glaciation, during which ice sheets placed a swathe of the northern hemisphere under a dead hand, extending their thrall as far as south as New England and Wales.
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Info

Scientists to Unearth Ice Age Secrets from Preserved Tree Rings


ScienceDaily
Mon, 05 Apr 2010 16:02 UTC
Kauri Tree
© University of Oxford
New Zealand's Kauri trees can measure up to four metres wide and live for up to 2,000 years.
Oxford University is involved in a research project to unearth 30,000 year old climate records, before they are lost forever. The rings of preserved kauri trees, hidden in New Zealand's peat bogs, hold the secret to climate fluctuations spanning back to the end of the last Ice Age.

The team, led by Exeter University, has been awarded a grant from the Natural Environment Research Council to carry out carbon dating and other analyses of the kauri tree rings. The trees store an immense amount of information about rapid and extreme climate change in the past. For instance, wide ring widths are associated with cool dry summer conditions. The scientists believe their findings will help us understand what future climate change may bring.

Tree rings are now known to be an excellent resource for extracting very precise and detailed data on atmospheric carbon from a particular time period. Therefore this study could help plug a large gap in our knowledge of climate change by extending historical weather records that only date back to the mid-nineteenth century.
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Hourglass

Failing ocean current raises fears of mini ice age

Fred Pearce
New Scientist
Wed, 30 Nov 2005 12:00 UTC
Image
© Mark Daly
The photo above showing ice at the docks in Galway, Ireland was captured in the early afternoon of January 9, 2010. The Atlantic coast of Ireland hasn't experienced seawater freezing in its dock area since the early 1980s. Ireland is still freezing in its coldest and longest winter since 1963. Is it a canary in the goldmine in terms of the North Atlantic Drift ocean current?
The ocean current that gives western Europe its relatively balmy climate is stuttering, raising fears that it might fail entirely and plunge the continent into a mini ice age.

The dramatic finding comes from a study of ocean circulation in the North Atlantic, which found a 30% reduction in the warm currents that carry water north from the Gulf Stream.

The slow-down, which has long been predicted as a possible consequence of global warming, will give renewed urgency to intergovernmental talks in Montreal, Canada, this week on a successor to the Kyoto Protocol.

Harry Bryden at the Southampton Oceanography Centre in the UK, whose group carried out the analysis, says he is not yet sure if the change is temporary or signals a long-term trend. "We don't want to say the circulation will shut down," he told New Scientist. "But we are nervous about our findings. They have come as quite a surprise.
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Igloo

Ice Age Cometh: Coldest Irish winter since 1963


Irish Independent
Tue, 02 Mar 2010 10:50 UTC
Image
© Unknown
View of Dublin from the Dublin Mountains, February 7th
Ireland suffered its coldest winter in almost five decades as the country shivered in the big freeze, it was revealed.

Met Eireann said temperatures were around two degrees lower than average during the season, making it the coldest winter recorded since 1963.

Arctic conditions experienced at the end of last year continued through January and February, with widespread spells of frost, sleet and snow.

Temperatures plummeted to below minus 10C in some places, with minus 16.3C recorded at Mount Juliet, Co Kilkenny, on January 7.
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Attention

Croat scientist warns ice age is overdue, could start in five years


Croatian Times
Wed, 10 Feb 2010 07:31 UTC
Image
© National Geographic May 2005 issue
Tick, tock, tick, tock...
A leading scientist has revealed that Europe could be just five years away from the start of a new Ice Age.

While climate change campaigners say global warming is the planet's biggest danger, renowned physicist Vladimir Paar says most of central Europe will soon be covered in ice.

The freeze will be so complete that people will be able to walk from England to Ireland or across the North Sea from Scotland to northern Europe.

Professor Paar, from Croatia's Zagreb University, has spent decades analysing previous ice ages in Europe and what caused them.

"Most of Europe will be under ice, including Germany, Poland, France, Austria, Slovakia and a part of Slovenia," said the professor in an interview with the Index.hr.

"Previous ice ages lasted about 70,000 years. That's a fact and the new ice age can't be avoided.
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Alarm Clock

The Ice Age Cometh

Andrew Kenny
The Sunday Mail
Sun, 14 Jul 2002 00:00 UTC
last ice age
© http://wattsupwiththat.com/
A new ice age is due now, but you won't hear it from the green groups, who like to play on Western guilt about consumerism to make us believe in global warming.

The Earth's climate is changing in a dramatic way, with immense danger for mankind and the natural systems that sustain it. This was the frightening message broadcast to us by environmentalists in the recent past. Here are some of their prophecies.
The facts have emerged, in recent years and months, from research into past ice ages. They imply that the threat of a new ice age must now stand alongside nuclear war as a likely source of wholesale death and misery for mankind.
(Nigel Calder, former editor of New Scientist, in International Wildlife, July 1975)

The cooling has already killed thousands of people in poor nations... If it continues, and no strong measures are taken to deal with it, the cooling will cause world famine, world chaos, and probably world war, and this could all come about by the year 2000. (Lowe Ponte, The Cooling, 1976)
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Fish

Florida's Wildlife Freezing to Death

Jennifer Viegas
Discovery News
Thu, 11 Feb 2010 13:45 UTC
Image
© Florida Fish and Wildlife Conservation Commission
More than 200 manatees have washed ashore since January, and carcasses are still turning up.
Manatees, sea turtles and fish in the Sunshine State are dying in record numbers because of the unusually long cold snap.

With temperature in central Florida dipping down again this week, conservationists are bracing for more animal and plant deaths due to unusually long winter cold snaps that have resulted in record wildlife losses.

Manatees have been among the hardest hit, with over 200 killed in January alone, and carcasses continuing to wash ashore. The highest number of manatee deaths for a single calendar year in Florida waters is 429, so local officials are closely monitoring these endangered marine mammals.

"Manatees can experience what is known as cold stress syndrome when they are exposed to water below 68 degrees Fahrenheit (20 degree Celsius) for long periods," Florida's Fish and Wildlife Research Institute spokesperson Carli Segelson told Discovery News. "This can result in death, or weaken manatees, leaving them more vulnerable to other health issues later."
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Igloo

Climate Modification Schemes: Are Mad Scientists Trying to Induce an Ice Age?

Spencer Weart
American Institute of Physics
Mon, 11 Aug 2008 10:43 UTC
Image
© Kathleen Smith/LLNL
A schematic representation of various geoengineering and carbon storage proposals: are such schemes selected on the basis that they assist in precipitating an Ice Age?
If human activities could change climate, why not change it on purpose, to suit us better? From 1945 into the 1970s, much effort went into studies of weather modification. American entrepreneurs tried cloud-seeding to enhance local rainfall, Russian scientists offered fabulous schemes of planetary engineering, and military agencies secretly explored "climatological warfare." The hopes and fears promoted basic research on climate change by raising large sums of government money and a few provocative ideas. In the mid 1970s the visionary projects were abandoned. Research turned instead to controversial "geoengineering" schemes for interventions that might restrain global warming if it started to become unbearable.
"Intervention in atmospheric and climatic matters . . . will unfold on a scale difficult to imagine at present. . . . this will merge each nation's affairs with those of every other, more thoroughly than the threat of a nuclear or any other war would have done." - John von Neumann1

Comment: Given that global warming has not in fact been happening, and presuming the chief scientists involved in these military geo-engineering projects are aware of this fact to one degree or another, what does that tell us about the real objective behind the drive to "counter the effects of global warming" while blaming ordinary humanity?

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Snowman

Croatian Scientist Warns Ice Age Could Start in Five Years


Croatian Times
Wed, 10 Feb 2010 09:00 UTC
A top scientist in Croatia has warned Europe to prepare for an ice age instead of talking about global warming.

Physician Vladimir Paar suggests one would not need to cross the sea when travelling from Ireland or UK to Croatia via the rest of Europe.

"A majority of Europe will be under ice, including Germany, Poland, France, Austria, Slovakia and part of Slovenia", Paar said in an interview on Croatian news website Index.
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Bizarro Earth

Coral in Florida Keys suffers lethal hit from cold

Curtis Morgan
The Miami Herald
Sat, 30 Jan 2010 17:54 UTC
Bitter cold this month may have wiped out many of the shallow water corals in the Keys.

Scientists have only begun assessments, with dive teams looking for "bleaching" that is a telltale indicator of temperature stress in sensitive corals, but initial reports are bleak. The impact could extend from Key Largo through the Dry Tortugas west of Key West, a vast expanse that covers some of the prettiest and healthiest reefs in North America.

Given the depth and duration of frigid weather, Meaghan Johnson, marine science coordinator for The Nature Conservancy, expected to see losses. But she was stunned by what she saw when diving a patch reef 2.5 miles off Harry Harris Park in Key Largo.

Star and brain corals, large species that can take hundreds of years to grow, were as white and lifeless as bones, frozen to death. There were also dead sea turtles, eels and parrotfish littering the bottom.
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