The Universal House of Justice has asked us to thank you for your letter … and to assure you that the best way in which you can help to save the wildlife and natural condition of the world is to exert every effort to bring the Message of Bahá’u’lláh to the attention of your fellow-men and to win their allegiance to His Cause. As the hearts of men are changed, and they begin to work in unity in the light of Bahá’u’lláh’s teachings, they can begin to implement many practical improvements to the condition of the world. This is already beginning in the efforts at social and economic development in those areas where large Bahá’í communities have been founded. Of course, you can also assist those with whom you come into contact who have an interest in improving the environment, but the fundamental solution is the one that Bahá’u’lláh has brought.
(Universal House of Justice, 14 June 1984, to an individual believer)