Vale to fuel mining trucks with ethanol

Brazil-based miner is working with Komatsu and Cummins to develop dual-fuel engines that are expected to reduce CO2 emissions by 70%.

In a move that is expected to significantly lower the carbon dioxide emissions from the large mining trucks at its mines and strengthen the biofuel industry, Brazil-based mining giant Vale has partnered with Komatsu and Cummins to develop engines that burn a mix of...