A new "plastic-free" logo launched in Britain on Wednesday will allow shoppers to identify products with plastic packaging as companies come under growing pressure to use green alternatives.

Eight million tons of plastic — bottles, packaging and other waste — are dumped into the ocean every year, killing marine life and entering the human food chain, according to the United Nations.

Growing concern from the public and lawmakers about the environmental damage means food and drink manufacturers and retailers are under pressure to act on plastic waste.