Starbucks says it will eliminate plastic straws from its stores globally by 2020, a nod to the growing push for businesses to be more environmentally friendly.

The company becomes the largest food and beverage company to do so as calls to cut waste globally grow louder. Plastic straws have become one of the biggest targets.

"There are several of these single-use items the public is realizing, hey, we don't actually need these," said Denise Hardesty, a scientist with Australia's Commonwealth Scientific and Industrial Research Organisation who studies plastic pollution.

A week after Seattle banned plastic drinking straws and utensils, the company said Monday that by 2020, it will be using straws made from biodegradable materials like paper and specially designed lids. The company already offers alternative straws in Seattle.

Other cities, like Fort Meyers, have banned plastic straws as well. Similar proposals are being considered in places like New York and San Francisco.

The issue is coming up in company boardrooms, though Starbucks is taking the lead.

In February, Dunkin' Donuts said it would eliminate polystyrene foam cups from its stores by 2020.

McDonald's shareholders voted down a proposal requesting a report on plastic straws in May. McDonald's also recently said it would switch to paper straws in the United Kingdom and Ireland by next year, and test alternatives to plastic straws in some U.S. locations.The burger chain also said this year it would use only recycled or other environmentally friendly materials for its soda cups, Happy Meal boxes and other packaging by 2025.

Starbucks notes the cups for its cold drinks are made from recyclable materials.

While plastic drinking straws have become one of the more high-profile issues environmentally, they make up only about 4 percent of the plastic trash by number of pieces, and far less by weight. Straws add up to about 2,000 tons of the nearly 9 million tons of plastic waste that ends up in the water each year.

The strawless lids will begin to appear in Seattle and Vancouver Starbucks this fall, with phased rollouts within the U.S. and Canada to follow next year. A global rollout of the strawless lids will follow, beginning in Europe where the will be used in select stores in France and the Netherlands, as well as in the United Kingdom.

Environmental activists have been pressuring businesses to ditch plastic straws because they can end up in the ocean and hurt marine life. The push gained traction after a viral video in 2015 showed rescuers removing a straw from a sea turtle's nose in graphic detail.

Still, the advocacy group 5 Gyres notes that the top five biggest sources of single-use plastic are plastic bags, water bottles, to-go containers, to-go cups and straws.

Other plastic items have also been targeted in recent years.

Several local governments have enacted bans and fees on plastic bags. Reusable water bottles have also gained popularity as a way to reduce use of plastic water bottles, with refilling water stations popping up on college campuses and elsewhere.

One reason big chains say it will take time to change practices may be the difficulty in securing adequate supplies. Imperial Dade, a food service and janitorial supplies distributor based in New Jersey, says it's seen a huge spike in demand for alternative straws in recent months.

"Our biggest challenge is trying to locate alternative sources so we can satisfy the demand," said Laura Craven, the company's director of marketing.

Craven also said she's starting to see more awareness about the need for exemptions for straws that bend, which people with disabilities and others may need. Starbucks says it expects an alternative it has to work in that regard.

The strawless lids will begin to appear in Seattle and Vancouver Starbucks this fall, with phased rollouts within the U.S. and Canada next year. A global rollout of strawless lids will follow, beginning in Europe, where they will be used in some stores in France and the Netherlands, as well as in the United Kingdom.