In a recent column I explored the question of labeling genetically modified (GM) crops and discussed the problem of superweeds resistant to ‘Roundup’ and pollen drift from GM fields to adjacent non-GM fields. I decided to devote this column to the question of whether GM crops are needed to feed a growing world population. What I found is that while there is controversy about this issue, GM soybeans, corn, cotton and other crops are widely used throughout the world.
GM cotton has been planted in India and China, with a gene for BT (Bacillus thuringiensis) inserted to serve as insecticide. Initially successful, it has given rise to resistant pests that have also attacked other food crops. Farmers also complain that GM seed is 3-8 times more expensive than ordinary seed.
GM soybeans are widely planted in the US, Brazil, Argentina and China, and are mainly used as feed for cattle, swine and chickens. Without this crop, Europe would have to cut back on meat, dairy and egg production. Soybean production in Brazil, used for biodiesel and animal feed, is resulting cutting of the Amazon rainforest.
Corn originated in Mexico, which is the home for hundreds of varieties. Mexican framers fear that widespread planting of GM corn will lead to contamination of native varieties. Mexico has legalized GM corn planting, but the issue is extremely controversial. 88% of U.S. corn is GM.
Golden rice, genetically modified to contain carotenes that will help with Vitamin A deficiency, has been planned for years and is now being tested in the Philippines, India and Taiwan. Funding has come from the Bill and Melinda Gates Foundation to increase the bioavailability of pro-vitamin A, vitamin E, iron and zinc in
golden rice, thereby preventing blindness and malnutrition in children in India, the Philippines and many African countries. Companies that have developed golden rice have said that they will allow farmers to save and replant seed, and will not charge royalties until a farmer makes more than $10,000 year from golden rice. Greenpeace and Dr. Vandana Shiva, the Indian anti-GMO activist, oppose the introduction of golden rice because of corporate control of agriculture, loss of biodiversity, and ignoring other important sources of carotenes such as green vegetables and fruits.
On the one hand, GM crops for basic foods like corn, soy and canola are widely planted and used throughout the world. They have been successful in increasing supplies of animal feed and human food. On the other hand, they have degraded the environment and resulted in resistant pests and weeds. But these arguments pro and con are dwarfed by the larger reality of the world’s growing population and a transition from food surpluses to food and water scarcity in many parts of the world. There is serious aquifer depletion in China, India and the U.S., countries that produce half the world’s grain. Food prices are rising and will continue to rise, according to Lester Brown of the Earth Policy Institute. Brown’s latest book, Full Planet, Empty Plates, takes a serious look food & water scarcity and is a call to action. He calls for cutting carbon emissions by 80% by 2020, emphasizing wind and solar energy. Brown is also strong on the need for worldwide family planning and the education of women. The failure to take family planning seriously in most discussions of food and water scarcity, megacities and relentless population growth is troubling. Wherever it has been introduced widely, on a voluntary basis, there has been a significant drop in birth rates. South Korea and Taiwan have reduced their birth rates below replacement, and Thailand has also been successful with their program. Meeting women’s wishes for fewer children with modern contraceptives in South Asia and Africa could be tremendously helpful, but providing information and supplies, and overcoming cultural obstacles is a huge task. An estimated 222 million women in developing countries do not want another pregnancy but lack access to contraception. Many organizations are working on this, and deserve support. Obama is calling for increased funds for international family planning - $635.4 million. In the Bill and Melinda Gates Foundation. Melinda Gates is making family planning/contraception her priority for the next decade. I should write another column on the many organizations that work on this issue. If the environment is your issue, take a look at The Center for Biological Diversity, which links work to prevent extinction of wild animals and plants. I appreciate the fact that they have an endangered species condom project, thereby linking human population growth with species extinction and climate change. The Sierra Club has yet to take a strong stand on population growth nationally. Stay tuned.