The green NGO ¨Deutsche Umwelthilfe¨ (DUH) urged American carmakers to respect their plight to develop greener cars by choosing CO2 for their air conditioning systems, after presenting an English version of its investigation of 1234yf’s flammability in Sacramento, USA.

As American carmakers await a much-needed bailout from the US Government, on the condition that they develop greener cars, the NGO DUH highlighted in Sacramento, California, the hazards related to 1234yf, as a result of its own independent investigation of the substance. After presenting an English version of a video documentary summarizing its findings, the organization urged carmakers worldwide to choose the natural refrigerant CO2 instead. DUH referred to manufacturers such as Mercedes, BMW and Volkswagen/ Porsche, who have decided against 1234yf due to its risks in case of accident.
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