U.S. farmers who have switched to genetically engineered crops have made increased profits and reduced short-term damage to the environment, but reliance on weedkillers associated with the new crops could undermine the environmental benefits, according to a new study.

More than 80 percent of the soy, corn, and cotton grown in the U.S. is now genetically engineered to resist pests or the popular herbicide, Roundup, according to the report by the National Academy of Sciences.

But nine species of weeds have evolved resistance to glyphosate, a main component of Roundup. (more…)

Climate change not only presents difficult challenges for the energy industry, but also raises serious concerns about food security as loss of topsoil and desertification reduce arable land around the world.  Within this climate, genetically-modified crops (GMOs) will play a crucial role in supporting increased development and population growth.

GMOs are organisms, such as plants and animals, whose genetic characteristics are being modified artificially in order to give them a new property.  Last month, Monsanto, the world’s leading seed producer, announced that it expects African countries to increase plantings of GMOs in order to boost food security and economic development in the face of climate change.  Africa is the only continent where per-capita food output is falling, which also raises concerns about introducing fuel-dedicated crops.  GMOs could increase yields for both food and fuel, but international and regional rules governing GMOs represent a significant barrier to increased international trade.

(more…)