New Delhi/Geneva, Transitioning to a more sustainable and carbon-neutral future will require USD 13.5 trillion in investments by 2050, particularly in the production, energy and transport sectors, a new World Economic Forum report said on Tuesday. The report noted that major producing countries and regions such as India, China, the US, and EU have now committed to net-zero targets, making it imperative for businesses within their jurisdictions to align their operations and strategies with the evolving regulatory landscape.