Thousands of coal-fired power plant workers and miners marched in Berlin at the weekend in protest againReichstagst a proposed government levy to be imposed on the facilities.

Reuters reports that thousands of coal industry workers marched on Saturday. The government wants to impose penalties on the coal-fired power plants in order to cut coal-sector emissions by a further 22 million tonnes by 2020. But opponents say it puts 100,000 jobs at risk and will damage the coal industry.

An estimated 13,500 marched from the economy ministry to the chancellery. reported last fall that Germany is likely to miss its 2022 climate targets and greenhouse-gas emissions from power plants, as the country’s use of coal continues to increase.