For the past 13 years Ms. Teixeira has lobbied industry for sound environmental management. She is the secretary general of CAIPA, a Portuguese NGO concerned with promoting sustainable development.
After six years, Portugal's National Association for Conservation of Nature - "Quercus" - has grown to 5,500 members, organised in 18 delegations throughout the country and several research bodies and task groups.
Quercus is a non-profit making, non-partisan association that conducts studies/assessments of Portugal's flora and fauna and establishes environmental projects with business enterprises and governmental bodies adhering to the principles and aims of sustainable development. Quercus has made important contributions to environmental awareness through media campaigns. It is the publisher of the 0 Teixo newsletter, Cademos Quercus, as well as other nonperiodical publications.
Quercus is also a member of several international organisations.