Ver también:

• Biosfera
  That part of the earth, and the atmosphere surrounding it, which is able to support life.
• Contaminación
• Control biológico
  Control of undesirable insects, plants or animals by the introduction of predators, parasites, or diseases.
• Crisis ecológica
• Desastre causado por el hombre
• Ecología humana
• Equilibrio ecológico
• Medio ambiente natural
• Urbanización
  Population concentration in urban areas as a result of rural migration or due to an increase in the number of urban areas. Do not confuse with "urban development".