Electric cars might be a vital component of a more sustainable future, but until then, a start-up called Qaptis has developed a technology that it claims can capture 90% of CO2 emissions from internal combustion engines. This means that the use of heat from the engine will power a reversible thermochemical reaction to capture and compress CO2 to a liquid before it escapes from the tailpipe. Once the CO2 is in liquid form, it can be collected and upcycled. The Federal Office for the Environment has revived a loan from the Foundation for Technical Innovation to develop this technology in the form of a kit that can be easily retrofitted to existing vehicles.