A torrent of plastic pollution flows into the ocean each year—stuff like discarded drink bottles, food wrappers, cigarette butts and straws. California voters are about to decide whether to uphold a statewide ban on single-use carryout shopping bags, which rank fourth among the types of trash found in coastal cleanups.
Top ocean scientists recently put the scope of the challenge in perspective. The UC-Santa Barbara Benioff Ocean Initiative and the Monterey Bay Aquarium collaborated on a half-day plastic pollution science summit at the University of Southern California.
“We have to get our heads collectively around how much [plastic] might be entering the ocean every year,” said Dr. Roland Geyer, an associate professor of industrial ecology and green supply chain management with the Bren School at UCSB.
Global plastic production has far surpassed the production of metals like aluminum and steel. Globally, people have created and used 7 billion metric tons of plastic over the past 65 years—half of that in just the past 15 years.