SN Online SN Online Share this: Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print By Science News September 23, 2011 at 12:23 pm ENVIRONMENT Plastics sloughed off clothing can pollute coastlines. See “Synthetic lint ends up in oceans.” G.D. Rak et al/PLoS Biology 2011 Arctic sea ice this year was near its smallest extent on record. Read “Summer Arctic melt among worst ever.” GENES & CELLS Natural killer cells are caught in the act of feeding poison pills (below) to tumors. See “News in Brief: Genes & Cells.”