Energy-saving
Global warming
Drought
Toxic chemicals
Landfill
Air pollution
Biodegradable
Natural resources
Water consumption
Environmental friendly
A long period when there is little or no rain.
The portion of water use that is not returned to the original water source after being withdrawn.
Not harmful to the environment. This term most commonly refers to products that contribute to green living or practices that help conserve resources like water and energy.
Relating to products, systems, etc. that use as little electricity, gas, etc. as possible.
A gradual increase in world temperatures caused by gases such as carbon dioxide that are collecting in the air around the earth and stopping heat escaping into space.
A place to dispose waste material by burying it and covering it over with soil, especially as a method of filling in or extending usable land.
Things such as minerals, forests, coal, etc. that exist in a place and can be used by people.
Any substance or mixture that may be harmful to the environment and to human health if inhaled, swallowed, or absorbed through the skin.
Capable of being decomposed by bacteria or other living organisms.
Harmful substances in the air, often consisting of waste from vehicles or industry.