Sources of banned CFCs found through their advertising

Ars Technica -------- A couple months ago, an atmospheric study revealed that someone had started producing an ozone-depleting pollutant that had been banned under an international agreement to protect the ozone layer. The new source was preventing the chemical from dissipating on schedule. Although the researchers were careful about what they could conclude from regional measurements, they found that eastern Asia was likely the source. To learn more click on the picture below to read the article.