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Are our oceans on the brink of collapse ?


Posted on Sunday, 24 March, 2013 | Comment icon 25 comments


Image credit: CC 2.0 mjwinoz

 
Overfishing and other destructive factors may be pushing the world's oceans towards disaster.

They make up two thirds of the surface area and 90% of the living volume of the planet, yet despite their size our oceans are at as much risk from environmental changes and destructive human activities as the rest of the world. Pollution and overfishing have meant that most large fish species have disappeared from the oceans and there is no sign that this trend will stop any time soon.

A fishing method known as "bottom-trawling" has also been blamed for much of the unnecessary damage inflicted upon the ocean floor. The technique involves dropping a large weighted net from a boat and dragging it along. "Anywhere you go and try to harvest fish with a trawl you are going to destroy any coral that lives there, and there is example after example of the damage that is done by trawlers," said marine scientist Ron O'Dor.

"As the human footprint has spread, the remaining wildernesses on our planet have retreated."

  View: Full article |  Source: CNN

  Discuss: View comments (25)

   


 
Recent comments on this story
Comment icon #16 Posted by Doug1o29 on 1 April, 2013, 19:52
Overfishing and other destructive factors may be pushing the world's oceans towards disaster. Well, we know it's coming. We just don't know exactly when. But the good news is that with protection and good management, much of the ocean can still recover. It's purely a matter of politics. Doug
Comment icon #17 Posted by spud the mackem on 1 April, 2013, 21:51
Well, we know it's coming. We just don't know exactly when. But the good news is that with protection and good management, much of the ocean can still recover. It's purely a matter of politics. Doug The problem is Doug,that Politicians are more worried about climbing the power ladder, and trying to put one over the opposition in Congress or our Parliament, to worry about a few hundred 1000 fish dying.Its politics that are polluted,and only the ordinary people can change that.
Comment icon #18 Posted by Br Cornelius on 2 April, 2013, 8:47
My prediction, based on events so far, is that no effective action will be taken on any of the significant environmental crisis we face. Nature will impose a readjustment on society, not the other way round. Br Cornelius
Comment icon #19 Posted by Abramelin on 2 April, 2013, 9:32
I hope its not too late to save the Oceans...Before the Green idea took off recently,tankers used to clean the tanks at sea,thousands of tons of sludge oil went overboard, and it is said by seamen that there is a ridge of garbage running from Europe to America,when Passenger ships dumped all the waste while crossing to and fro.Now there are 1000's of containers on the Ocean floor from ships losing them in bad weather.I guess we are leaving a Garbage legacy to our Grandkids to solve.I'm not surprised that sea life is failing due to our not caring attitude.
Comment icon #20 Posted by Moon Gazer on 2 April, 2013, 10:09
My prediction, based on events so far, is that no effective action will be taken on any of the significant environmental crisis we face. Nature will impose a readjustment on society, not the other way round. Br Cornelius I agree with this. I think eventually mother nature will get fed up with us humans messing up her oceans and land. And then mother nature will kick our arses.
Comment icon #21 Posted by Hilander on 8 April, 2013, 23:33
That was so sad I could barely watch it without tearing up. Man has done this to them.
Comment icon #22 Posted by Abramelin on 10 April, 2013, 23:44
That was so sad I could barely watch it without tearing up. Man has done this to them. It appears to me that is all we do to/for them: deliver sadness. And yes, I also could not watch this video with dry eyes. But next morning most will have forgotten what they watched the evening before. It's a sad and stupid world we live in, or better, a world we all created..
Comment icon #23 Posted by Br Cornelius on 11 April, 2013, 7:20
We deserve everything that's coming. We are all complicit in this. Br Cornelius
Comment icon #24 Posted by CrimsonKing on 11 April, 2013, 9:16
When man spills billions of gallons of oil in the Gulf Of Mexico, sprays it with Corexit so that it sinks to the ocean floor, it will take years to determine the actual damage. Agreed man!As i said in a different topic,we see only what is right before us at the current moment.When the truth of the matter comes face to face with our past screw ups we will lie,defy,and deny.Pass the blame and try to ensure others believe it.
Comment icon #25 Posted by Marcin on 3 May, 2013, 22:55
Every action brings back a reaction, the way we're going as a species, we just keep pushing, and pushing, and pushing... nature to the brink, habitats of other animals to their brink, to some extent the climate, oceans, the entire balance... sooner or later tho, something will push back, I wonder can we handle that.


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