Report: 4 companies responsible for 6 million tons of plastic waste

A new report says that four major companies are responsible for six million tons of plastic waste every year.

Coca-Cola, Mars, Nestle and Danone are the companies named in a report from the Ellen MacArthur Foundation. The report says Coca-Cola alone produces 3 million tons.

According to CBS News, this is the first time that Coca-Cola has been public about its packaging production. The reveal comes as part of a commitment the company made last year to reduce its reliance on plastic packaging, which "included an increased level of transparency in the disclosure of our packaging."

"We'll continue this type of proactive reporting on our World Without Waste progress as we work to hit our goals by 2030," the company said in a statement.

Coca-Cola has promised to make all of its packaging recyclable over the next six years and for its bottles to have an average of 50 percent recycled content by 2030.

Many of the 150 companies named declined to disclose how much plastic they produced, but they account for one-fifth of the plastic packing produced in the world, the report estimates.