Enlace original:
https://wedocs.unep.org//handle/20.500.11822/27672
United Nations Environment Programme
,
[A Long-term Vision for 2050 - Global Environment Outlook (GEO-6): Healthy Planet, Healthy People Chapter 20]
,
A Long-term Vision for 2050 - Global Environment Outlook (GEO-6): Healthy Planet, Healthy People Chapter 20