Tiny 5-millimeter-wide microplastics have been found in the nests and bodies of birds that are living in people's backyards, according to Audubon. Scientists said the discovery was "eye-opening to see ...

Birds are breathing in high levels of airborne microplastics into their lungs—and, likely, so are we, with unclear effects on our health. This is the warning of an international team of researchers, ...