Expert response from Community Manager
Moderator for GMOAnswers.com
Friday, 28/12/2018 19:09
There are several ways GMOs have had a positive impact on our lives - and really, there are too many to name – so instead, we’ll explore the 6 main ways GMOs impact society.
6 Ways GMOs Impact Society
1. GMOs provide economic benefits to millions of consumers.
While the cost of food is impacted by various factors (the price of oil affects transportation costs; temperature changes can cause drought; etc.), GMOs play an important role in keeping those prices as low as possible. It’s estimated that corn prices would increase as much as 28 percent and soybean as much as 22 percent if GM crops were not grown, according to a 2016 study by Wally Tyner et al.
2. GMOs reduce agriculturally related greenhouse gas (GHG) emissions.
Agricultural economist Graham Brookes reports:
“GMOs have helped farmers reduce their environmental footprint by allowing them to use fewer inputs and enabling a shift to reduced tillage. These practices have led to less time spent on a tractor, less fuel used and fewer emissions. As a result, GMOs have helped reduce CO2 emissions equivalent to removing 12.4 million cars from the road for one year. They have also led to 1.2 billion pounds less pesticides being used between 1996 and 2013.”
3. GMOs reduce soil erosion.
Herbicide tolerant (HT) crops enable more farmers to adopt conservation tillage because they help farmers to more effectively and efficiently control weeds at a lower cost than comparable conventional cropping systems. Florida farmer Lawson Mozley explains that with herbicide tolerant GM crops, weeds can be sprayed and left in the field to protect the soil. Then the incoming crop is planted directly into the leftover organic matter, without turning over the soil.
4. GMOs conserve water.
Farmers utilize many tools to conserve water, including drip irrigation systems and conservation tillage practices. GMOs provide another tool that farmers can employ to help conserve water. Herbicide tolerant GM crops support the adoption of conservation tillage aiding in soil moisture retention, which can reduce the need to irrigate. But, GMOs can help reduce water use in another way – enhanced drought tolerance. This GM trait can help crops cope with stress and yield more when periods of drought occur– without supplemental water from irrigation.
“With the frequency of drought predicted to increase as an impact from climate change, we need to look to innovative technology to adapt to more water stressed conditions. Agriculture has a big role to play as it is estimated that agriculture uses about 70 percent of the world’s available water supply. One of the most remarkable applications of agricultural technology is the development of drought-tolerant crops. As arid weather continues, farmers are looking to water-efficient seeds to help them produce more food per unit of water.”
5. GMOs substantially decrease the use of many agricultural chemicals.
A common misconception is that the adoption of GM crops have increased the use of pesticides, when just the opposite is true. Overall GM crops, including crops with the “Bt” (Bacillus thuringiensis) trait for insect resistance, have contributed to a 37 percent decrease in pesticide applications. Learn more about how some GMOs have led to a reduction in pesticide use here.
6. GMO technology also has potential to improve the lives of millions in the developing world.
“While serving in the Peace Corps in Cameroon, Central Africa and more recently in business travel to Africa, I’ve observed the difference that technology can make. The average yield of U.S. maize is 165 bushels per acre; the average yield for the African continent is closer to 20 bushels per acre. We can do better in Africa and in most other geographies. GMO technology is one tool to help us get there while enabling farmers a chance at greater sustainability, prosperity, health and nutrition, benefits which have positive and far-reaching ripple effects for all of society.”
As outlined in a study published in 2016 in World Development, farmers in South Africa benefit from yield increases and reduced applications of pesticides with GM maize varieties. The weed control benefits, in particular, are valued by female farmers who most often are tasked with the difficult and time-consuming activity of hand-weeding.
We hope this answers your question, if you have any other questions about GMOs or biotechnology, please ask here!
How GMOs are Researched, Developed and Tested
Learn how plant biotechnology works through the scientists who research, develop and test GMO crops at Dupont.