[Lisa]

Nå er jo ikke dette akkurat noe nytt med en Gov report fra UK for noen år tilbake peker på noen av problemene ved økologisk landbruk, både når det gjelder areal men også dyrenes ve og vel (som jo krever mer resursser ved økologsk landbruk, og også dermed har det bedre må man jo anta).

http://www.independent.co.uk/environ...nt-436949.html

The pitfalls
Tomatoes
* 122sq m of land is needed to produce a tonne of organic vine tomatoes. The figure for conventionally-grown loose tomatoes is 19sq m.
* Energy needed to grow organic tomatoes is 1.9 times that of conventional methods.
* Organic tomatoes grown in heated greenhouses in Britain generate one hundred times the amount of CO2 per kilogram produced by tomatoes in unheated greenhouses in southern Spain.
Milk
* Requires 80 per cent more land to produce per unit than conventional milk.
* Produces nearly 20 per cent more carbon dioxide and almost double the amount of other by-products that can lead to acidification of soil and pollution of water courses.
Chickens
* Organic birds require 25 per cent more energy to rear and grow than conventional methods.
* The amount of CO2 generated per bird is 6.7kg for organic compared to 4.6kg for conventional battery or barn hens.
* Eutrophication, the potential for nutrient-rich by-products to pollute water courses, is measured at 86 for organic compared to 49 for conventional.
* The depletion of natural resources is measured at 99 for organic birds compared to 29 for battery or barn hens.