Environmental benefits and costs of transgenic crops: introduction

نویسنده

  • Justus Wesseler
چکیده

Concern about the environmental impacts of transgenic crops is one of the major reasons for the EU’s quasi moratorium on GMOs (European Environment Council 1999). The contributions in this book show that the economic implications of these concerns are far-reaching and complex. At the centre of the theoretical framework for analysis stands the linear chain of agricultural biotechnology development as depicted in Figure 1. The public and private sector invest resources in the development and use of knowledge to produce agricultural crops with new traits. Those new crops are sold to farmers who plant them and sell the harvest to the downstream sector, which further processes the products until they finally reach the end consumer via the retailers. The major concern about environmental impact at the farm level, where the deliberate release into the environment takes place, is indicated by the circle around the box in the centre of Figure 1.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Irreversible costs and benefits of transgenic crops: what are they?

The decision of whether to release transgenic crops in the EU is one subject to flexibility, uncertainty and irreversibility. We analyse the case of herbicide-tolerant sugar beet and estimate the maximum irreversible environmental cost that can be tolerated for this technology from a benefit–cost perspective. Among Member States, these costs range from an annual € 50 to € 212 per hectare plante...

متن کامل

Will consumers lose or gain from the environmental impacts of transgenic crops?

Opposition to genetically modified food encompasses environmental concerns, food-safety concerns and ethical objections. Potential environmental benefits from transgenic crops are not well accepted. Genetic modification is a credence attribute that cannot be detected by consumers without labelling. In the absence of labelling a pooling equilibrium results in an adverse quality effect for those ...

متن کامل

Capitalizing on deliberate, accidental, and GM-driven environmental change caused by crop modification.

The transgenic traits associated with the majority of commercial genetically modified crops are focused on improving herbicide and insecticide management practices. The use of the transgenic technology in these crops and the associated chemistry has been the basis of studies that provide evidence for occasional improvement in environmental benefits due to the use of less residual herbicides, mo...

متن کامل

Environmental effects of genetically modified crops: differentiated risk assessment and management

A review of the literature shows that the environmental risks and benefits of genetically modified crops have varying degrees of certainty. For example, field studies have documented growing resistance to highly used pesticides. However, the risks of gene flow and deleterious effects on non-target organisms have not been evaluated at large field scales. Similarly, reduced pesticide use and toxi...

متن کامل

Glyphosate: a once-in-a-century herbicide.

Since its commercial introduction in 1974, glyphosate [N-(phosphonomethyl)glycine] has become the dominant herbicide worldwide. There are several reasons for its success. Glyphosate is a highly effective broad-spectrum herbicide, yet it is very toxicologically and environmentally safe. Glyphosate translocates well, and its action is slow enough to take advantage of this. Glyphosate is the only ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004