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Renewable energy
Up until now, most of the energy we used came from coal, oil and gas (fossil fuels). But these will not
last forever and burning them is a major cause of climate change.
Many countries are now choosing to use renewable sources for their energy needs. Solar energy from
the sun, wind power from turbines, hydroelectric energy from rivers and sea water, and geothermal
power, taking heat from the centre of the Earth are the main sources of renewable energy. Countries
like Iceland and Costa Rica are leading the way, with Iceland getting 100% of its energy from these
renewable sources.
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