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This is where the main focus of HREOC 's disability rights work has been over the last decade - although we have also done some important work outside of the scope of the DDA , for example on sterilisation issues . Depending on assumptions and global warming potentials of the different pollutants involved , improving biomass stoves can achieve a double benefit in the form of lower GHG emissions and reduced ill-health . The procedures include provision for the submission of proposals , citizen participation , evaluation of the proposal and communication of test results and specific findings to applicants and affected neighborhood organizations prior to the installation of traffic management devices . More than the works of Marx and Engels , the present work addresses itself to the foreign public with a taste for social problems . Further steps would include improving fuel quality and developing new fuel specifications , including lowering of sulphur levels ; upgrading the quality of vehicles and tightening emission controls ; establishing baseline inventories of key pollutants and health effects ; and developing an appropriate public information or awareness campaign .