27 EU states ratify NDC for 90% greenhouse gas reduction by 2040. Intermediate target cuts emissions 66-72.5% by 2035 versus 1990. ETS2 launches 2027 taxing CO2 in transport, buildings, heating. Gas rises 25 zł/MWh in 2027, over 47 zł/MWh by 2030. Coal jumps 306 zł/t in 2027, 560 zł/t by 2030. Gasoline adds 0.54 zł/liter, diesel 0.65 zł/liter. Higher energy costs inflate food, services, production. Coal-dependent countries face worsened energy poverty. Subsidies planned for heat pumps, EVs, building upgrades. Transformation remains costly despite supports. Declaration heads to COP30 in 2025.