Given the sheer vastness of the world’s oceans, one could be forgiven for thinking that dropping a mere plastic bag into its depths would have no discernible impact, but in actual fact, nothing could be further from the truth. That one little plastic bag could potentially swirl around in the sea water, float along innocently with the tides and currents, and end up in the Pacific Ocean and contribute to the building of a monster.

For, in the broad expanse of the northern Pacific, there exists the North Pacific Subtropical Gyre, a slow-moving, clockwise vortex of currents created by a high-pressure system of air currents. And within this immense space resides the largest landfill on the planet: a floating world of millions of pounds of litter.

And it’s been coined the Great Pacific Garbage Patch.

Covering an area the size of Texas, this floating landfill doubles in size every 10 years and kills countless birds and sea life that get tangled in the debris or mistake its contents for food.  It’s a very vivid reminder to humans that this is a not a problem that is going to simply disappear.

Plastic is the main culprit behind it all.

The very thing that makes plastic items useful to consumers, their durability and stability, also makes them an enormous problem in marine environments. Plastic does not break down so it stays there in the gyre, permanently.

Of the approximately 100 million tonnes of plastic that are produced each year, about 10 per cent of which ends up in the sea.

And up until a couple of years ago, this was a little known phenomenon, conveniently hidden away in a remote corner of the ocean.

Out of sight, out of mind, right?

Wrong.

As soon as Australian environmentalist and filmmaker Tim Silverwood learned that his big blue backyard was being confronted with unimaginable amounts of plastic, he was drawn to see it for himself.

In July 2011 he did just that. Teaming up with a group of researchers on board a 70-foot ex-racing sail boat, he sailed for three weeks from Hawaii to Vancouver, a 5,000 kilometres journey, and assisted in a study on the Great Pacific Garage Patch and its effects on marine life.

As Silverwood writes in his account of the trip,

“There are many misnomers about the Garbage Patch. There is no floating island of trash nor has there ever been one. The concept of a ‘floating island’ was coined by the media after Captain Charles Moore first discovered the accumulation zone in 1997. The best analogy for the Garbage Patch is a giant plastic soup. Debris not only floats on the surface of the ocean it also descends throughout the entire water column, making it less spectacular to look at and physically impossible to ‘scoop up’ and remove, as so many bemused citizens suggest when they hear of this plastic ‘island’.”

So what does one do upon returning from such a trip?

Silverwood continues, even more passionately than before, on his campaign to educate people on the effects of plastic pollution, as he believes the only genuine way to make a difference is to completely stop plastic from entering the oceans in the first place.

The campaign he co-founded is called Take 3– it’s a clean beach initiative and it takes the issue to a grassroots level, convincing people to pick up at least three pieces of rubbish off the beach each time they pass by.

“The thing I love about ‘Take 3’ is that it puts the ownership and responsibility back on the people,” said Silverwood. “The beauty of Take 3 is that you can do it anywhere, anytime and it won’t cost you time or money. Our goal is to change the image of trash on the ground from inert and ‘someone else’s problem’ to a threat to wildlife and something that you can pick up even though you didn’t put it there.”

He is also petitioning the Australian government to set up a nation-wide beverage container deposit system, in light of the observed reduction of littering of beverage bottles in countries where such a system is in place.

And as for plastic bags, he is fighting for a ban on them too.

For more information, check out Bag It, the movie.

www.greenster.com/magazine/great-pacific-garbage-patch/#sthash.EXONapJa.dpuf

~ Dawn Green