Graham Brookes, an agricultural economist and director of UK-based PG Economics, discusses the magnitude of the economic and environmental benefits of biotechnology in agriculture since 1996 -- specifically citing a reduction in pesticide applications of 172,000 metric tons across four main biotech crops, an increase in global farm income of US$28 billion, and a reduction in greenhouse gases of 10 million metric tons.
http://www.monsanto.com/biotech-gmo/asp/videogallery.asp
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