Tag Archives | Oceans

Dumping Iron In The Seas Could Slow Global Warming

By majestic on July 19, 2012 in News 46

Wipeter (CC)

Prepare yourselves for radical unintended consequences if these scientists manage to convince governments to go along with their plan. Alastair Doyle reports for Reuters via the Christian Science Journal:

Dumping iron in the seas can help transfer carbon from the atmosphere and bury it on the ocean floor for centuries, helping to fight climate change, according to a study released on Wednesday.

The report, by an international team of experts, provided a boost for the disputed use of such ocean fertilisation for combating global warming. But it failed to answer questions over possible damage to marine life.

When dumped into the ocean, the iron can spur growth of tiny plants that carry heat-trapping carbon to the ocean floor when they die, the study said.

Scientists dumped seven tonnes of iron sulphate, a vital nutrient for marine plants, into the Southern Ocean in 2004. At least half of the heat-trapping carbon in the resulting bloom of diatoms, a type of algae, sank below 1,000 metres (3,300 ft)…

[continues at Reuters via the Christian Science Journal]

The Freakonomics guys also espouse this idea:

… Read the rest

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U.S. Navy Wants To Keep Prying Eyes Away From Ocean Floor

By majestic on January 17, 2012 in News 12

LIDO Listening To The Deep Sea Ocean Environment

Satellite photos used to be for military eyes only, but Google Earth changed all that. Now something similar is happening to the ocean depths, with any web user able to listen in and “surf the sea floor” – and the US Navy is not happy. Rhitu Chatterjee and Rob Hugh-Jones report for PRI’s The World via BBC News:

“The cable is going underneath here,” says Benoit Pirenne, standing at the water’s edge on Canada’s Vancouver Island. “It’s going out 500 miles (800km) in a big loop in the ocean, coming back in the same place.”

The Vancouver cable connects a network of scientific instruments on the floor of the north Pacific, some as deep as 1.5 miles (2.5km).

Set up by Pirenne and his colleagues at the University of Victoria, and called Neptune Canada, they continuously monitor the marine environment.

The scientists are harvesting large amounts of information, including water pressure readings that help them better understand the movement of tsunamis through oceans, which they hope will lead to more accurate warning systems.

… Read the rest

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Did Life On Earth Start With A Single Ocean-Sized Mega-Creature?

By JacobSloan on November 30, 2011 in News 41

File this under we-are-all-connected: three billion years ago, life on Earth may have been a global mega-organism called LUCA, from which all living things today are descended. Can we get an artist’s rending of this colossal being? New Scientist writes:

ONCE upon a time, 3 billion years ago, there lived a single organism called LUCA. It was enormous: a mega-organism like none seen since, it filled the planet’s oceans before splitting into three and giving birth to the ancestors of all living things on Earth today.

This strange picture is emerging from efforts to pin down the last universal common ancestor – not the first life that emerged on Earth but the life form that gave rise to all others.

The latest results suggest LUCA was the result of early life’s fight to survive, attempts at which turned the ocean into a global genetic swap shop for hundreds of millions of years.

… Read the rest

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UFO At The Bottom Of The Baltic Sea?

By JacobSloan on August 1, 2011 in News 53

Something very large and circular slid across the ocean floor off the coast of Sweden. Is it a UFO? If so, our extraplanetary visitors should be commended on selecting the best country for initiating contact. Via Gizomodo:

Swedish sea treasure hunters have found something extraordinary: A 60-foot disc sunk in the bottom of the ocean, with what appears to be 985-foot-long impact tracks leading to it.

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Earth’s Oceans On Brink Of Mass Extinction In One Generation

By JacobSloan on July 27, 2011 in News 72

Clear the ocean of all of those pesky fish, and then we can put all sorts of cool things down there. Via the Independent:

The speed and rate of degeneration of the oceans is far faster than anyone has predicted; many of the negative impacts identified are greater than the worst predictions; the first steps to globally significant extinction may have already begun.

The world’s oceans are faced with an unprecedented loss of species comparable to the great mass extinctions of prehistory, a major report suggests today.

The seas are degenerating far faster than anyone has predicted, the report says, because of the cumulative impact of a number of severe individual stresses, ranging from climate warming and sea-water acidification, to widespread chemical pollution and gross overfishing.

The coming together of these factors is now threatening the marine environment with a catastrophe “unprecedented in human history”, according to the report, from a panel of leading marine scientists.

… Read the rest

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Unknown 55-Foot Creature Washes Ashore In China

By JacobSloan on June 24, 2011 in News 29

55 feet long and smells terrible? Must be my mother-in-law. (rimshot) The Sun reports:

A giant 55 foot ‘sea monster’ has been found washed up on a beach in China. The beast from the deep is so badly decayed it cannot be identified. But according to local reports from Guangdong, in the south-east of the country, it weighed at least 4.5 tons.

People have flocked to see the creature — despite the rotting corpse’s foul stench. It was found tangled in ropes and one theory is fisherman caught it but could not land it as it was so big.

… Read the rest

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Translation Machine To Make Human-Dolphin Conversations Possible

By JacobSloan on May 18, 2011 in News 24

What secrets of the sea have dolphins been waiting to tell us? We may soon find out (hopefully not just tuna jokes). New Scientist reports:

A diver carrying a computer that tries to recognize dolphin sounds and generate responses in real time will soon attempt to communicate with wild dolphins off the coast of Florida. If the bid is successful, it will be a big step towards two-way communication between humans and dolphins.

Since the 1960s, captive dolphins have been communicating via pictures and sounds. In the 1990s, Louis Herman of the Kewalo Basin Marine Mammal Laboratory in Honolulu, Hawaii, found that bottlenose dolphins can keep track of over 100 different words. They can also respond appropriately to commands in which the same words appear in a different order, understanding the difference between “bring the surfboard to the man” and “bring the man to the surfboard”, for example.

But communication in most of these early experiments was one-way, says Denise Herzing, founder of the Wild Dolphin Project in Jupiter, Florida.

… Read the rest

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As Fish Die Off, Jellyfish To Dominate Earth’s Oceans

By JacobSloan on January 14, 2011 in News 12

Around the globe, fish populations are declining while the number of jellyfish is exploding. Climate change may be “turning back the clock to the Precambrian world, more than 550 million years ago, when the ancestors of jellyfish ruled the seas,” writes Yale Environment 360. Bow down to our future gelatinous overlords:

The world’s oceans have been experiencing enormous blooms of jellyfish, apparently caused by overfishing, declining water quality, and rising sea temperatures. Now, scientists are trying to determine if these outbreaks could represent a “new normal” in which jellyfish increasingly supplant fish.

The Nomura’s jellyfish is a monster to be reckoned with. It’s the size of a refrigerator and can exceed 450 pounds. For decades the hulking medusa was rarely encountered in its stomping grounds, the Sea of Japan.

Then something changed. Since 2002, the population has exploded six times. In 2005, a particularly bad year, the Sea of Japan brimmed with as many as 20 billion of the bobbing bags of blubber, bludgeoning fisheries with 30 billion yen in losses.

… Read the rest

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A New African Ocean?

By Pelliciari on June 28, 2010 in News 6

For over the past 5 years, scientific researchers have been observing an ocean in the making. Scientists at the Royal Society, claim that the African continent will be split in two based on a 60 kilometer crack in the Earth’s surface in Ethiopia. Tim Wright, the lead researcher, estimates that the process of forming a new ocean will take approximately ten billion years. The crack is caused by molten rock slowly rising from deep below the Earth’s surface. Matt McGrath of the BBC goes into detail:

“Dr James Hammond, a seismologist from the University of Bristol – who has been working in Afar – says that parts of the region are below sea level and the ocean is only cut off by about a 20-metre block of land in Eritrea.

“Eventually this will drift apart,” he told the BBC World Service. “The sea will flood in and will start to create this new ocean.

… Read the rest

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