4. Human Population Size Resources use Land Transformation Land Clearing Forestry Grazing Intensification Biotic Additions and Loss Invasion Hunting Fishing Carbon Nitrogen Water Climate Change Enhanced Greenhouse Aerosols Land cover Loss of Biological Diversity Extinction of species And populations Loss of ecosystems Vitousek et. al (1997) Science, 277, p.494-499 Human Enterprises Agriculture Industry Recreation International Commerce Global Biogeochemistry
5. Humans Change of the Earth Expressed as % Change Vitousek et. al (1997) Science, 277, p.494-499
32. Invasive species Zebra Mussel US and UK Asian Clam San Francisco Coqui frog Hawaii Brow Tree Snake Guam Rabbits Australia Africanized Honeybee South America