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wiped out the fishes, plankton now causing "gas events" on a massive scale

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meow mix Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Sep-11-08 04:36 PM
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wiped out the fishes, plankton now causing "gas events" on a massive scale

Through some hard-core detective work and astute observations, Dr. Bakun and his colleague, Dr. Scarla Weeks of the University of Cape Town in South Africa, realized that the rampant overfishing of sardines off the southwest coast of Africa may have been a factor in eruptions of two toxic gases – hydrogen sulfide, and methane – from the Atlantic Ocean floor. The hydrogen sulfide causes a horrible rotten-egg smell that had long burdened (and perplexed) residents of local communities in Namibia, while also poisoning fish and causing oxygen poor dead-zones in the water. Methane gas traps 21 times as much heat as carbon dioxide, the most common greenhouse gas.

Drs. Bakun and Weeks co-authored a 2004 scientific paper in the peer-reviewed journal Ecology Letters describing their theory that sardines, phytoplankton, and climate change are intricately connected. When plentiful, sardines consume massive quantities of tiny plants called phytoplankton, which float atop the ocean and are whisked to the surface by the “upwelling” of subsurface waters. (The ocean off Namibia is one of the world’s strongest upwelling regions in the world). But when sardines are overfished, phytoplankton continue to blanket the ocean until they die and sink to the ocean floor, where they are decomposed by bacteria. These bacteria produce massive amounts of toxic gases in the process – gases that are even worse for global warming than carbon dioxide and turn this stretch of the African coastline into a marine life dead zone.

The cyclical causes and effects of these and other seemingly unrelated events affecting the world’s water supply are chronicled in two new hours of "Strange Days on Planet Earth," narrated by actor and environmentalist Edward Norton. The acclaimed National Geographic series, now in its second season, was shot on location around the world with teams of scientists in action.

http://www.pewoceanscience.org/press/press-article.php?ID=89

i was watching this on the netflix the other night... the gas eruptions were large (1000s of kilometers) which can be seen from orbit.
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Systematic Chaos Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Sep-11-08 04:43 PM
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1. Oh fuck yeah life is good baybee!
Now pardon me while I go smoke a pistol.

Don't worry... just figuratively.

For now.

:cry:
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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Sep-11-08 04:49 PM
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2. jesus. And over-fishing is so hard to stop. THey never believe the scientists until

the target fish population totally collapses.

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Nihil Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Sep-15-08 06:00 AM
Response to Reply #2
4. And even then they blame something/someone else ...
... rather than admit that *they* killed it off ...
:mad:
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phantom power Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Sep-11-08 05:20 PM
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3. Uh oh.
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tom_paine Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Sep-15-08 09:29 AM
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5. Just how many facets ARE there to the Environmental and Ecological Collapse?
Hundreds? Thousands? Millions?

The other key question: How many of the 500 million years or so the Earth has left to support intelligent life will be used up recovering for H. sapiens?

Quite honestly, I think at that moment, we are more devastating in many ways than the coment which killed the dinosaurs.

Will we shoot for creating a Permian-level event by the time we are finally extinct?

No one knows. But get ready. It's going to be a hell of a tobaggan ride!
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eppur_se_muova Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Sep-15-08 07:47 PM
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6. Too late for a 5th rec, and this one deserves it.
It's all those unintended, unexpected consequences that are going to hurt us the most.
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