By Dieter Holger Financial technology startup Trovio plans to launch one of the world's first exchange-traded funds invested in gold that targets net-zero emissions, combining two of the most popular ETF trends in recent years. The company said Monday that its upcoming GoldZero ETF, jointly developed with sustainable commodities firm Xpansiv, is backed by carbon offsets and will list on the Australian Securities Exchange. To cut emissions, carbon offsets commonly involve investing in tree planting and other environmental projects. Each carbon offset credit typically equals one ton of carbon dioxide. "We're offering investors the ability to readjust their portfolios in precious metals to promote better climate decisions--without impacting the underlying performance of gold's investment case as a store of value and protection against inflation," Trovio Chief Executive Jon Deane said.