GM crop use continues to benefit the environment and farmers
Crop biotechnology continues to provide major environmental benefits and allow farmers to grow more, using fewer resources. A majority of these benefits are in developing countries.
"In the 17th year of widespread adoption, crops developed through genetic modification delivered more environmentally friendly farming practices while providing clear improvements to farmer productivity and income," said Graham Brookes, director of PG Economics, co-author of the report. "Half of the farm income gains and the majority of the environmental gains associated with changes in pesticide use and reductions in greenhouse gas emissions occurred in developing countries."
A few highlights from this comprehensive review are:
• Crop biotechnology has contributed to significantly reducing the release of greenhouse gas emissions from agricultural practices. This results from less fuel use and additional soil carbon storage from reduced tillage with GM crops. In 2012, this was equivalent to removing 27 billion kg of carbon dioxide from the atmosphere or equal to removing 11.9 million cars from the road for one year;
• Crop biotechnology has reduced pesticide spraying (1996-2012) by 503 million kg (-8.8%). This is equal to the total amount of pesticide active ingredient applied to arable crops in the EU 27 for nearly two crop years. As a result, this has decreased the environmental impact associated with herbicide and insecticide use on the area planted to biotech crops by 18.7%2;
• The insect resistant (IR) technology used in cotton and corn has consistently delivered yield gains from reduced pest damage. The average yield gains over the 1996-2012 period across all users of this technology has been +10.4% for insect resistant corn and +16.1% for insect resistant cotton;
• The herbicide tolerant (HT) technology used in soybeans and canola has also contributed to increased production in some countries; by helping farmers in Argentina grow a crop of soybeans after wheat in the same growing season3, through higher yields and improved weed control;
• Between 1996 and 2012, crop biotechnology was responsible for an additional 122 million tonnes of soybeans and 231 million tonnes of corn. The technology has also contributed an extra 18.2 million tonnes of cotton lint and 6.6 million tonnes of canola;
• GM crops are allowing farmers to grow more without using additional land. If crop biotechnology had not been available to the (17.3 million) farmers using the technology in 2012, maintaining global production levels at the 2012 levels would have required additional plantings of 4.9 million ha of soybeans, 6.9 million ha of corn, 3.1 million ha of cotton and 0.2 million ha of canola. This total area requirement is equivalent to 9% of the arable land in the US, or 24% of the arable land in Brazil or 27% of the cereal area in the EU (28);
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