Brown coal mining limits in North Bohemia name to Severní energetická in August 2013, it initiated a new marketing campaign featuring individuals and small groups of people wearing green T-shirts against a backgrounds of a power plant or an excavator accompanied with the slogan “Don’t pay for sun [or wind]. Choose Czech energy.” Greenpeace parodied this campaign by asking its supporters to “creatively modify” the Severní energetická posters by suggesting new slogans. The results included: “We’ll bulldoze your homes. Choose brown coal”, “Don’t pay for the sun, pay for a lunarscape”, and “Pay with your life. Choose Czech energy”. Prime Minister Petr Nečas resigned and his government
Coal Palace red mortar. Vitric coal was also used to spell "Coal Palace" above the main entrance. Sioux City architect Charles P. Brown was contracted to design the Coal Palace; he had previously designed the first Corn Palace in Sioux City and was at the time planning the second. Born in Salem, Massachusetts, Brown moved to Sioux City in 1886 and had designed much of its downtown. Brown recognized the inherent medieval quality of walls covered in uncut coal and capitalized on this theme by adding turrets, crenellated walls, and spired roofs. Ten flags with the names of the ten coal-donating counties