Unit 1 LESSON 7 Making a Speech
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 Renewable energy comes from natural sources that don’t run out, such as sunlight, wind, tides, and geothermal heat.// Denmark is one of the leading countries in the use of renewable energy, which accounted for more than 30% of the country’s total energy consumption in 2018.//
 As the graph shows, Denmark relied on oil and coal for most of its energy in 1980.// Oil, coal, and other fossil fuels emit carbon dioxide and other harmful chemicals that contribute to climate change.// Since around the turn of the century, Danes have been worried about the environmental impact of fossil fuels, so they have made efforts to replace them with renewable energy sources.//
 The country is particularly well known for pioneering wind power production, and it serves as a good model for other countries trying to adopt renewable energy sources.//