desertification

the spread of desert conditions resulting from deforestation, overgrazing, and poor agricultural practices

demographic collapse

near genocide of native populations

virgin soil epidemic

the native population has no immunity or previous exposure to the disease within the lifetime of the oldest member of the group 

siltation

build up of sand in clay in waterways

deep ecology

revolves around self-realization and biospherical egalitarianism 

Ecofeminism

views that combine environmental advocacy with feminist analysis

Environmental ethics

 philosophical perspective on nature , draws on moral principles as guidance  

preservation

position that some habitats species and resources should be off limits to human beings

Conservation

philosophy that natural resources should be used wisely and that humans are stewards not exploiters of the natural worlds 

romanticism

- philosophy that emphasizes the interdependence on humans and nature

all creatures have a divine presence

Political ecology

incorporates the same human environment components as cultural ecologists , but also emphasizes political and economic context 

Nature

is a social creation and the physical universe

Society

 the inventions , institutions and relationships created and reproduced by human beings 

technology

the key mediator between nature and society 

tools physical objects or artifacts