Friday, December 30, 2016
Do you recycle everything you can, or is it just easier to "throw away" most of your trash? If you are like most people, you think trash is trash, but as an environmentally-minded person you should know that there is no such thing as "away".
Most of what you throw away ends up either in a landfill or, as a recent survey of thousands of hours of video recorded by remotely controlled vehicles shows, in the oceans.
What these results show is disturbing and depressing, but the first step in solving a problem is understanding it.
We have to educate ourselves.
Thanks for reading,
Your Living Green editor
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We've all seen images of trash on beaches, or floating on the surface of the ocean. But a surprising amount ends up on the deep seafloor, at depths so great that it's been very hard for us to really know what the situation is. Because it's not very practical to fund a deep sea mission just to look for trash, researchers at the Monterey Bay Aquarium Research Institute instead decided to comb through thousands of hours of video recorded by remotely controlled vehicles over the past 20 years, specifically looking for debris.
In total, the researchers counted over 1,500 observations of deep-sea debris, at dive sites from Vancouver Island to the Gulf of California, and as far west as the Hawaiian Islands. In the recent paper, the researchers focused on seafloor debris in and around Monterey Bay—an area in which MBARI conducts over 200 research dives a year. In this region alone, the researchers noted over 1,150 pieces of debris on the seafloor.
About 1/3 of the trash were made of plastic, more than half of those being plastic bags, which are notoriously dangerous for marine life. Next were metal objects, at about 1/5 of the total. Other common debris included rope, fishing equipment, glass bottles, paper, and cloth items.
Because of deep sea conditions (very cold water, little oxygen, few bacteria), all of this trash will likely stick around much longer than it would do on the ground.