Air pollution from China, India and several other Asian countries has wafted across the Pacific Ocean over the past 25 years, increasing levels of smog in the western US, a study has found.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-pollution-asia-wafting-over-united-states-increasing-smog-levels-west
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/south-china-morning-post
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asia
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/scientists
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ozone-layer