Graham Brookes

Independent Expert

Graham Brookes

Agricultural Economist, PG Economics Ltd, UK

Graham Brookes is an agricultural economist with PG Economics Ltd, UK, which specialises in examining the economic and environmental impact of new technology use in agriculture.  Graham has authored 15 papers, published in peer reviewed scientific and economic journals on the economic and environmental impact of GM crops around the world.  See for example: Brookes G and Barfoot P (2015) Environmental impacts of GM crop use 1996-2013: impacts on pesticide use and carbon emissions.  GM Crops 6:2, p103-133, and Brookes G and Barfoot P (2015)  Global income and production impacts of using GM crop technology 1996-2014, GM Crops 6: 1, p13-46.  Brookes G and Barfoot P (2016) Global economic benefits of GM crops reach $150 billion

Available on open access at www.landesbioscience.com

From this Expert

Posted on: March 2, 2018
Response from Graham Brookes, Agricultural Economist, PG Economics Ltd, UK • April 6, 2018
In order to answer this question, it is important to first be clear about what a GMO/GMO farm is and secondly to discuss the complex issues relating to herbicide and pesticide use. What is a GMO/GMO farm? It is assumed that this question refers to genetically modified crops. GM crop technology has been widely used since the mid-1990s and in 2016 were planted on about 178 million hectares worldwide. The main GMO traits convey: Tolerance to specific herbicides (notably to glyphosate) in maize... Read More
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Posted on: June 19, 2017
Response from Graham Brookes, Agricultural Economist, PG Economics Ltd, UK • August 4, 2017
Assuming this question relates to the percentage of global GMO production – the USA accounted for 35 percent of the global area planted to GM soy in 2015 (35 percent in 2014 and 34 percent in 2013). The USA accounted for 59 percent of the global planting of GM corn in 2015 (58 percent in 2014, 59 percent in 2013).   Sources: ISAAA, USDA NASS, various national Ministries of Agriculture
Posted on: February 9, 2017
Response from Graham Brookes, Agricultural Economist, PG Economics Ltd, UK • July 31, 2017
In order the answer this question, it is important to first be clear about what a GMO is and secondly to discuss a number of issues relating to yields.   What is a GMO? It is assumed that this question refers to genetically modified crops. GM crop technology has been widely used since the mid-1990s and in 2015 were planted on about 175 million hectares worldwide.   The main GMO traits convey:            Tolerance to specific... Read More
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Posted on: February 8, 2017
Response from Graham Brookes, Agricultural Economist, PG Economics Ltd, UK • July 31, 2017
In order the answer this question, it is important to first be clear about what a GMO is and secondly to discuss the complex issues relating to herbicide use.   What is a GMO? It is assumed that this question refers to genetically modified crops. GM crop technology has been widely used since the mid-1990s and in 2015 were planted on about 175 million hectares worldwide.   The main GMO traits convey:            Tolerance to... Read More
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Posted on: February 18, 2016
Response from Graham Brookes, Agricultural Economist, PG Economics Ltd, UK • April 4, 2016
On the assumption that this question is asking if GMO crops keep food affordable, the answer is yes, they do contribute to keeping food affordable. This arises from the cost reducing and yield enhancing impacts of using GM technology in crops like corn, soybeans, cotton and canola over the last 20 years. As a result of yield gains, between 1996 and 2013, crop biotechnology has been responsible for additional global production of 138 million tonnes of soybeans and 274 million tonnes of... Read More

STUDY: The contribution of glyphosate to agriculture and potential impact of restrictions on use at the global level

By Graham Brookes (Independent Expert) on January 9, 2018

This study assesses the potential economic and environmental impacts that would arise if restrictions on glyphosate use resulted in the world no longer planting genetically modified herbicide tolerant (GM HT) crops.

STUDY: New report highlights 20 years of economic and environmental benefits from using biotech/GM crops

By Graham Brookes (Independent Expert) on June 5, 2017

A new report released today by PG Economics has found that over the last 20 years, crop biotechnology has significantly reduced agriculture’s environmental impact and stimulated economic growth in the 26 countries where the technology is used. The innovative agricultural technology has contributed to preserving the earth’s natural resources while allowing farmers to grow more, high quality crops. It has also helped alleviate poverty for 16.5 million, mostly smallholder farmers, in developing countries.