Plankton Decline Across Oceans As Waters Warm

July 30th, 2010

The amount of phytoplankton – tiny marine plants – in the top layers of the oceans has declined markedly over the last century, research suggests.

Writing in the journal Nature, scientists say the decline appears to be linked to rising water temperatures.

They made their finding by looking at records of the transparency of sea water, which is affected by the plants.

The decline – about 1% per year – could be ecologically significant as plankton sit at the base of marine food chains.

This is the first study to attempt a comprehensive global look at plankton changes over such a long time scale.
“What we think is happening is that the oceans are becoming more stratified as the water warms,” said research leader Daniel Boyce from Dalhousie University in Halifax, Nova Scotia, Canada.

More on the BBC Science & nature site



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Rich Countries Accused of Carbon ‘Cheating’

June 11th, 2010

According the BBC, “some rich countries are seeking new rules under the UN climate convention that campaigners say would allow them to gain credit for “business as usual”.”

It’s all to do with land usage, and could allow countries like Russia to avoid their obligations under the Kyoto protocol.

More here.



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Value Added Archiving

May 14th, 2010

The recycling process doesn’t always have to be about re-using your old tapes, or rejuvenating them for re-use. It can also be about reinvigorating your archive tapes, giving them a spruce up, and just taking the time to check they are not in deterioration.

Evaluation Without Erasure

How do you check the quality of your archive tapes? How can you be sure they are not going to pot? The obvious thing to do is pop them in a player and make sure they are okay. This also stops them getting too loose on their reels of course.

But unless you sit and watch the entire tape diligently, you’ll never be one hundred per cent sure it’s defect free. Plus, running it through a VTR risks adding further dirt to the tape surface – and you also run the the risk of damaging the tape on the pinchers, rollers and heads.

It’s not the ideal solution.

This is where Tape Evaluators come in to their own. They automate the whole process, with the added benefit of actually polishing and cleaning the surface of the tape, thus removing any build up of dirt.

The Mechanics Of Evaluation

Let’s inspect a standard 32 minute Digital Betacam. It’s been sat on the shelf, gathering dust, roundly ignored or forgotten. It slips into the Evaluator, which feeds the tape through the mechanisms.

Here we find the sapphire burnisher posts, which clear away the dirt gently, before moving over the vacuum posts which pull away any other dirt onto specially designed cleaning tissues.

That should be enough, but it doesn’t stop there. Next the tape passes over a series of optical scanners, which physically survey the surface of the tape for any damage or defect. They report on the length and character of anything they find, so you know the EXACT condition of the tape.

But that’s not all – when the tape is ejected, a report is printed for you. If the newly clean tape is defect free, this report tells you so, and it also gives you a record of the date the tape was checked. If the tape does happen to be defective, it also reports on the nature and length of the damage.

As an added bonus, it gives you the exact duration of the tape, to the nearest second. This highlights some fun anomalies. A sixty minute Betacam for example, often has up to eight minutes of extra tape.

It Makes Sense

The evaluation process can only improve the efficiency and accuracy of your archiving. It’s good for your tapes, and it’s good for your records. It’s even good for your equipment, because it prevents the build up of dirt on your playback heads.



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Recycling Landfill – Fresh Kills, New York

April 14th, 2010

The world’s largest man-made structure is not The Great Wall of China, or indeed, anything great at all. It is in fact Fresh Kills Landfill on Staten Island, New York. But thankfully, it is now being reclaimed, and will soon develop into a large natural wetland park area.

Fresh Kills, New York

Fresh Kills, New York

Opened as a temporary landfill in 1947, the area covers 2200 acres, and at its highest is taller than the Statue Of Liberty. The 225 foot high mass can be seen with the naked eye from space. Originally, the land was a salt of intertidal marsh, much like the rest of Staten Island, and it contains forests, tidal wetlands and freshwater wetlands, as well as the four giant mounds of household waste.

Nature has clearly adapted to this unnatural mass. The Isle of Meadows at the mouth of the Fresh Kills Estuary is a source of material for herons building their nests, and the landfill sits beneath the Atlantic Flyway, the route used every spring and autumn by migrating birds.

But it’s not all idyllic. Over the years, the waste leaked thousand of pounds of toxic chemicals and heavy metals into nearby waterways. As a result, it was closed in 2001, except for a brief period when it hosted the rubble from the World Trade Centre.

Fresh Kills, New York

Fresh Kills, New York

So, now the City of New York, led by the Department of City Planning have embarked on a mission to turn the site into an area of beauty, a civil parkland to match it’s starkly pretty surroundings. And already, three of the four mounds of rubbish have been capped and nature is returning to the waste. The park will be three times larger than Central Park, another creative use of reclaimed land. The ecological restoration will also provide settings for public art, sports facilities and recreational areas. So, the city is hoping that what once was a blot, will soon become something great.



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The Pacific Plastic Vortex

April 6th, 2010

The video cassettes we all use are made up of various oxides and plastics, none of which are bio-degradable, and none of which are recyclable in the traditional sense – we can’t readily turn them into drinking bottles – but we CAN recycle them for your own re-use (read more about that here). So, let’s have a look at what simply throwing your video tapes in the bin can do for our planet.

Every month, companies like CVA prevent over 3 tonnes of videotape ending up in a landfill. In a year, that amounts to 88,000 tapes, 36 tonnnes, or the equivalent of four whole articulated lorries. But it’s not enough. Nicholas Stern, in his recently published report on global climate change, estimates that waste in land fills accounts for 3% of the UK’s emissions – and that’s not factoring in the emissions spewed out in making these products. As an industry, we can make a greater contribution to cutting these levels of waste down.

“Re-using and recycling lead to less resources being required to produce new goods and a reduction in associated emissions … Climate change will have serious impacts on world output, on human life and on the environment … It is not an option to wait and see, we must act now.”

The Stern Review

If clogging up our land fills when there is no need wasn’t bad enough, throwing plastic in the bin could mean it ends up in our oceans.

According to Greenpeace, there is a large vortex of discarded plastic floating in the Pacific, that can swell to the size of Texas. That’s an area three times larger than the entire UK. And 80% of this plastic originates from the land. Of course, we’re not saying your discarded tapes are bobbing around the Pacific, but we’re only adding to the problem by not recycling them. The vortex is made up of debris from all around the globe, and it is trapping and choking wildlife, and killing birds like the albatross.

“We’ve seen photos of albatrosses who eat this plastic … Even though their stomachs are filled, they end up starving because there are no nutrients in there.”

The Greenpeace ship M.Y Esperanza has recently departed Hawaii as part of their Defending The Oceans campaign, where they had seen rubbish covering the coastline, but out at sea, they saw an even greater problem. “The danger to marine life has been known for decades, but the scale of the problem has not been realised. With plastic consumption rapidly increasing globally, plastic has become ubiquitous in the ocean.” They believe that marine pollution will only be stopped if we all take responsibility and adopt a zero waste policy which includes recycling.

To find out more about recycling your video tapes for re-use, please explore the rest of our site.



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