Zerbo has also led the organization in working toward universalization of the Comprehensive Nuclear - Test - Ban Treaty, a legally binding global ban on nuclear explosive testing. (aaas.org)
The controversial idea will get a hearing next week at a major conservation meeting in South Africa, where elephant - rich African nations will renew a push to scrap a long - standing global ban on ivory sales and replace it with a limited legal trade in tusks taken from carefully managed elephant populations. (sciencemag.org)
When scientists discovered a huge and growing hole in the earth's ozone layer, Canadian researchers and bureaucrats were so central to the response that the ensuing global ban in the manufacture of ozone - depleting chemicals would be named the Montreal Protocol. (corporateknights.com)