Many people dichotomize luxury and sustainable development, claiming that it is impossible to mix the two.
There is a nice article on the controversial subject here:
http://www.gadling.com/2009/06/03/the-hard-truth-of-green-luxury-travel/
More info on luxurytravel is available in these good directories:
http://www.oneluxurytravel.com/articles
http://www.oneluxurytravel.com/glossary
http://www.oneluxurytravel.com/glossaire10
http://www.oneluxurytravel.com/glossaire50
http://www.oneluxurytravel.com/glossaire100
http://www.oneluxurytravel.com/glossaire200