Oops! It appears that I twittered a defunct link! Thanks for the heads up, @GMOpundit!
Anyway, the brochure “Focus on Yields – Biotech crops: evidence of global outcomes and impacts 1996–2009” (June 2011) by Brookes and Barfoot is available on the PG Economics website @ http://www.pgeconomics.co.uk/ but I am including it as an attachment to this blog entry. I am also attaching the Brookes and Barfoot report: “GM crops: global socio-economic and environmental impacts 1996-2009.” I refer my farmer friends to a nice tidbit out of this latter report:
“GM technology has had a significant positive impact on farm income derived from a combination of enhanced productivity and efficiency gains (Table 1). In 2009, the direct global farm income benefit from biotech crops was $10.8 billion. This is equivalent to having added 5.8% to the value of global production of the four main crops of soybeans, maize, canola and cotton. Since 1996, farm incomes have increased by $64.7 billion.”
Apologies to all who received and circulated the twitter message with broken link.