Extinctions

Massive Extinctions From Human Activity	Value 1 Aesthetic	Value 2 Environmental
Short Term Consequence Positive		More Urban Growth.
Negative	Climate Change within the extinctive animal habitat.	Invasive alien species.
Long-Term Consequence          Positive
Negative	Habitat loss and degradation.	Excessive nutrient load and other forms of pollution.

http://www.globalissues.org/article/171/loss-of-biodiversity-and-extinctions#MassiveExtinctionsFromHumanActivity 

The numbers of endangered animals is 10x the previous number because of human action that is brought upon them.