New Zealand’s Exchange (NZX) and S&P Dow Jones Indices have launched two new carbon efficient benchmarks, New Zealand’s first, to spur companies to disclose their emissions data. The new S&P/NZX 50 Carbon Efficient Index will be about 25% lighter on carbon emissions than the benchmark stock index, while the S&P/NZX 50 Portfolio Carbon Efficient Index will be around 19% lighter on emissions than the S&P/NZX Portfolio 50 Index. “The key objective behind the indices is to incentivise New Zealand companies to compare their carbon intensity to their group peers around the world,” NZX and S&P say in a statement on May 3.