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What is carbon dioxide?
greenhouse gas
a large underwater structure made of dead and living things
coral reef
animals that are very likely to become extinct in the near future
endangered species
a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms
fossil fuels
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect
global warming
any significant change in the measures of climate lasting for an extended period of time
climate change
is a protected area that has legal protection against fishing or development
marine reserve
an industrial plant that makes crude oil into petroleum products such as diesel, gasoline and heating oils.
oil refinery
are used to prevent or control the potential negative effects of water
flood defences
energy from a source that is not depleted when used, such as wind or solar power
renewable energy
dome-shaped sheets of ice found near the North and South Poles
polar ice caps
the level of the sea's surface, used in reckoning the height of geographical features s
sea levels
