Canada's natural resources ministry has launched the first mobile carbon dioxide capture and compressor unit to measure and analyse power plants' emissions. The mobile unit has tangled metal pipes and gauges tucked inside a semi-trailer.<br/> <br/>It can remove pollutants from a sampling of fossil fuel-fired plants' emissions while purifying and compressing carbon dioxide for transport, storage or use.<br/> <br/>The data generated in field tests may then be used to scale up the technology.<br/><br/>