Michael Perelman <michael at ecst.csuchico.edu> asks
'Whoa! Where is the evidence'? of organic farming's low yields and low productivity. The answer is in the output of organic farms, which are extensive in Europe and the UK now - not I hasten to add as a viable business, but as a hobby for retiring farmers.
'Keep in mind that the state has done massive research on behalf of conventional farming; virtually none for organic.'
Maybe not your state, but my state is paying vast sums to subsidise organic farming.. to no avail. Yields are poor and public confidence in organic food is falling. -- James Heartfield The 'Death of the Subject' Explained is available at GBP11.00, plus GBP1.00 p&p from Publications, audacity.org, 8 College Close, Hackney, London, E9 6ER. Make cheques payable to 'Audacity Ltd'