Renewable Resource
A Resource Such As Solar Or Wind Energy That Can Be Replenished Naturally.

Fossil Fuel
A Carbon Rich Energy Source Formed From Ancient Organisms That Releases CO? When Burned.

Climate Change
Long Term Alterations In Temperature And Weather Patterns Affecting Ecosystems Globally.

Greenhouse Effect
The Warming Of Earth Atmosphere Due To Greenhouse Gases Trapping Heat.

Acid Rain
Rainfall With A Low pH Caused By Air Pollution, Damaging Ecosystems And Tissues.

Eutrophication
A Process In Which Excess Nutrients Cause Algal Blooms, Reducing Oxygen In Aquatic Ecosystems.

Pollutant
A Harmful Substance Released Into The Environment That Disrupts Ecosystems.

Sustainability
The Practice Of Using Resources In A Way That Maintains Ecosystem Health Over Time.

Ecological Footprint
A Measure Of Human Impact On The Ecosystem Based On Resource Use.

Negative Feedback
A Type Of Feedback Loop That Counteracts A Change To Maintain Homeostasis.