The European Union's new environment commissioner called for the EU to emulate a controversial US initiative by setting up a "bourse" enabling countries to buy or sell national quotas in the gases
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/eu-environment-chief-calls-us-style-exchange-pollution-emissions
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change