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Dirty Water: Marine Absorption of Carbon Dioxide
03:04

Dirty Water: Marine Absorption of Carbon Dioxide

Many scientists believe that the greenhouse gas problem would be far worse today if the ocean didn't absorb as much carbon dioxide as it does. Some
Subject: ocean
Transcript: [brewer:] it was realized by the late 1950's, that the ocean was So powerful, that perhaps 30 to 40% Of all the carbon dioxide emitted-- From our

Dirty Water: Pollution in Bays and Estuaries
02:06

Dirty Water: Pollution in Bays and Estuaries

Among the areas hardest hit by marine pollution are bays and estuaries which, under normal circumstances, are extraordinarily productive. Estuaries are vulnerable to more than just oil spills and harbor development. They can also be harmed by the ch...
Subject: ocean

Dirty Water: Eutrophication
01:31

Dirty Water: Eutrophication

Among the greatest threats to estuaries and other closed bodies of water is eutrophication. This is the process by which abnormally high levels of nutrients are introduced into the environment. This can create an imbalance in the local ecosystem, wh...
Subject: ocean
Transcript: nutrients into the ocean, And you see massive profusions of phytoplankton, These sort of what are known as harmful algal blooms can occur. And these take a

On the Coast: Protecting the Coastal Environment
02:58

On the Coast: Protecting the Coastal Environment

Given the extensive use of the coast by humans, the task of protecting the coastal environment is enormously challenging.
Subject: ocean
Transcript: scientific input that's provided To them providing a happy medium between the ocean And the coastal population. And certainly the federal government is

Dirty Water: Urban Runoff
00:54

Dirty Water: Urban Runoff

The amount of oil that reaches the ocean from urban runoff and other terrestrial sources greatly exceeds the oil that comes from tanker spills.
Subject: ocean
Transcript: includes oil that people discharge there. And all of this comes down through the storm drains. And it comes out into the ocean. [narrator:]the amount of oil