Enviornmental Challenges
global warming
an increase in the average temperatue of the Earth’s atmosphere
greenhouse effect
the trapping of the sun’s heat by gasses in the Earth’s atmosphere
greenhouse gas
any gas in the atmosphere that contriubutes to the greenhouse effect
fossil fuels
fuels such as coal, oil and natural gas
sustainable
using natural resources in a way that they exist for future generations
carbon dioxide
a gas composed of carbon and oxygen
emissions
substances discharged into the air
degraded
of lower quality
atmosphere
the layer of air that surrounds Earth. It consists mainly of oxygen, nitrogen and carbon dioxide.
Energy Conservation
the careful management of energy so that less energy is used
Nuclear energy
energy released from the splitting of atoms
Solar energy
Energy from the sun
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