Terra Environment Dictionary is a resource of words, terms and phrases related to environmentalism, as defined by society.
The only planet—in fact, the only astronomical object—known to harbour life.
Categorised as being very likely to become extinct in the near future.
The natural and biophysical systems and interactions of living species, climate, weather and other natural resources, formations and processes.
The philosophy, ideology and social movement founded on the protection of the environment, as well as the improvement of its health.
the complete loss of a living species, with zero surviving members.
The extinction of an abnormally large number of species within a short period of geological time.
Sixth Mass Extinction
The purported ongoing extinction event during the present Holocene or Anthropocene epoch as a result of human activity. The present extinction rate (100 species per million per year) is estimated to be 1,000 times higher than the natural extinction rate (0.1 species per million per year). The five prior mass extinctions were all caused by natural events.