BBC News
By David Silverberg
image captionRebecca Prince-Ruiz, founder of Plastic Free July
When Rebecca Prince-Ruiz recalls how her eco-friendly movement Plastic Free July has progressed over the years, she can't help but smile. What began in 2011 as 40 people committing to going plastic-free one month a year has gained momentum to 326 million people pledging to adopt this practice today.
"I've seen that uptick in interest every year," says Ms Prince-Ruiz, who is based in Perth, Australia, and author of Plastic Free: The Inspiring Story of a Global Environmental Movement and Why It Matters.
"These days, people are taking a hard look at what they are doing in their lives and how they can seize an opportunity to be less wasteful," she says.