阿力克斯·史蒂芬是“改变世界”（Worldchanging.com）网站的创建人，他在这个演讲中指出，减低人类生态足迹在当下之意义尤为巨大，原因在于西方那一套生活方式将不能推广到发展中国家，因为那样将消耗大量的资源。(因为西方的那一套生活方式正逐步推广到发展中国家，进一步加剧着资源的大量消耗。)

阿力克斯·史蒂芬看望可持续发展的未来

Humanity is consuming resources at a rate that would require up to ten Earths if everyone lived like North Americans. As billions more people seek a higher quality of life, the planet faces mounting ecological and social pressures. Innovative solutions, from car-share clubs to landmine-detecting flowers, show that prosperity and sustainability can go hand in hand. The path forward lies in leapfrogging old technologies, supporting collaboration, and embracing bold new designs for cities and communities.

A Sustainable Future Demands Radical Innovation, Not Sacrifice

*Worldchanging*

business

cities

collaboration

culture

design

environment

global issues

invention

sustainability

renewable energy

TED Stage Talk

Alex Steffen: 阿力克斯·史蒂芬看望可持续发展的未来