Human domination of Earth's ecosystems

Peter M. Vitousek ^[1] ; Harold A. Mooney ^[1] ; Jane Lubchenco ^[2] ; J. M. Melillo ^[3]
1. [1] Stanford University
  
  Stanford University
  
  Estados Unidos
2. [2] Oregon State University
  
  Oregon State University
  
  Estados Unidos
3. [3] U.S. Office of Science and Technology Policy
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Localización: Science, ISSN 0036-8075, Vol. 277, Nº 5325, 1997, págs. 494-499
Idioma: inglés
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Resumen
- Human alteration of Earth is substantial and growing. Between one-third and one-half of the land surface has been transformed by human action; the carbon dioxide concentration in the atmosphere has increased by nearly 30 percent since the beginning of the Industrial Revolution; more atmospheric nitrogen is fixed by humanity than by all natural terrestrial sources combined; more than half of all accessible surface fresh water is put to use by humanity; and about one-quarter of the bird species on Earth have been driven to extinction. By these and other standards, it is clear that we live on a human-dominated planet.