European researchers have warned that the wave of pollution engulfing the globe could be nearing a tipping point. The waste plastic deluge could become an irreversible crisis.

Somewhere between 9 and 23 million tonnes of polymers get into the rivers, lakes and seas of the world every year. Even more may be getting into the terrestrial soils and by 2025 — unless the world changes its ways — these levels of pollution will have doubled.

And, the researchers warn, the uncertain and as yet unknown effects of weathering on such volumes of plastic could bring what has been called “a global toxicity debt” as drinking bottles, bits of fishing gear, coffee cups and carrier bags become covered with microbial life; as plastic particles foul the sea’s surface, become suspended in the water column, and build up in the sediments of the ocean.

Plastic waste has now been found everywhere: on the world’s highest mountains, in the deepest oceanic trenches, on the beaches of desolate islands in the Southern Ocean, in the Arctic ice, and in the tissues of living creatures, from seabirds to whales.

“Right now we are loading up the environment with increasing amounts of poorly reversible plastic pollution. So far we don’t see widespread evidence of bad consequences but if weathering plastic triggers a really bad effect we are not likely to be able to reverse it,” said Matthew Macleod of Stockholm University in Sweden.

Read the full article about the waste plastic deluge by Tim Radford at Eco-Business.