sentences:  As concerns over global warming grew in the 1980s, Denmark found itself with relatively high carbon dioxide emissions per capita, primarily due to the coal-fired electrical power plants that had become the norm after the 1973 and 1979 energy crises.Renewable energy became the natural choice for Denmark, decreasing both dependence on other countries for energy and global warming pollution.Many countries tried to subsidize green technology such as wind power, and most failed to make a viable industry.