maria algarra is the founder o“" clean this beach up” in miami. >> let's see what we can collect in aof blocks in south beach. >> sy: at the beginning of the pandemic, she found she had to expand her cleanup beyond the beach. she started the gle challenge, asking people around the world to tag places they found latex gloves littered. the results came flooding in. and before long, single-use face masks were strewn everywhere too. >> during every single cleanup that we do on a shoreline, we're collecting from 50 to 100 masks. >> sy: to see just how easy it is to spot pandemic pollution, we asked our newshour staff to keep their eyes open for it. from washington, d.c. to california, they shared videos and photos of this new kind of litter. why is the mask pollution particularly concerning to you? >> it's not just about the fact that masks are not biodegradable or recyclable. it's about the fact that they are a hazard for our wildlife, not just because they can eat the mask, but also because animals get entangled in the straps. >> sy: algarra and her team found a mask twisted around a puf