Ecologist: Heavy industry has pleaded for special treatment since the European Emissions Trading System was set up, but a new report suggests their complaints were exaggerated Steel and cement giants Arcelor Mittal and Lafarge are lobbying hard against tougher carbon targets at the same time as making millions in windfall profits from surplus carbon permits, new research shows. Under the EU trading scheme, set up in 2005, companies are allowed to emit carbon dioxide (CO2) up to a certain …