Encore Wednesday, March 2, 2022 at 9:30 p.m. and Saturday, March 5 at 11:30 a.m. on KPBS TV / On Demand. By 2050, there will be more plastic than fish in the oceans. PBS NewsHour takes a closer look at this now ubiquitous material, how it's impacting the world and ways we can break our plastic addiction.