Link

United Nations World Tourism Organization
www.unwto.org/index.php

UNEP Tourism Programme
www.uneptie.org/pc/tourism

UE Tourism Sustainability Group
www.ec.europa.eu/enterprise/services/tourism/tourism_sustainability_group.htm

Forum Mondiale sul Turismo per la pace e lo sviluppo sostenibile
www.desti-nations.net

International Ecotourism Society
www.ecotourism.org/webmodules/webarticlesnet/templates/eco_template.aspx?a=12&z=25

Sustainable Tourism
www.gdrc.org/uem/eco-tour/eco-tour.html

Association for Tourism in Higher Education – ATHE
www.athe.org.uk

International Centre for Ecotourism Research
www.griffith.edu.au/centre/icer

International Centre for Responsible Tourism
www.icrtourism.org

ARPAT Toscana
www.arpat.toscana.it/emas/em_turismo_intro.html

CTS – Camunia Tourism and Solidarity
www.turismosolidale.it

AITR - Associazione Italiana Turismo Responsabile
www.aitr.org

Eco-Turismo Italia
www.ecoturismo-italia.it

ICEI – Istituto Cooperazione Economica Internazionale
www.icei.it/turismo.html

Agenzia Provinciale per l'Energia e l'Ambiente
www.apea.siena.it