UBC Professor William Rees argues that climate change is the largest collective

UBC Professor William Rees argues that climate change is the largest collective threat humankind has ever faced as we are now a global culture. Individual choices to reduce their eco-footprint will not have a huge effect. Sustainability is not about acting alone, but is a collective enterprise so we must make our cities so it is possible for our citizens to live a sustainable life. We are all on the Titanic together.

We have to recognize we are at a juncture of history where we have not choice but to move fast to a very different way of life. The younger generation has got to stand up and be counted. Ashok

We have to recognize we are at a juncture of history where we have not choice but to move fast to a very different way of life. The younger generation has got to stand up and be counted. Ashok Khosla is Chairman of Development Alternatives in New Delhi, India. Previously, Khosla established and headed the Office of Environmental Planning and Coordination in India's national government. Khosla subsequently was Director of INFOTERRA, the global information system of the UN Environment Programme, was a Special Advisor to the Brundtland Commission, and served as an advisor to the United Nations, World Bank and Global Environmental Facility.