Human Influences on the Environment
Because humans are often poorly
adapted to their environment (they do not have warm fur coats,
sharp claws, night vision, or the ability to photosynthesize
their own food), they have learned to change their environment
to survive. The most dramatic changes they have brought about
in the environment have been in the past two centuries.
Technological advances have changed the face of the Earth as
well as the composition of the atmosphere and the hydrosphere.
The hyperlinks below take you to pages which show how human activities influence the
environment. For each example, think about what part of the environment
has been affected and why. For example, is the activity done to obtain
energy, to improve transportation, to bring water to arid regions, to
provide food or for other reasons?