Green investors often boast that they can support sustainability without sacrificing returns. But new research from Texas McCombs suggests otherwise. It also offers governments opportunities to raise more money from those investors for sustainable projects.

In Germany’s sovereign bond market, buyers are quietly paying a premium for green bonds — by accepting lower yields on them. So finds Aaron Pancost, assistant professor of finance, who calls the difference a “greenium.”

By integrating ancient geological archives with high-tech climate simulations, researchers identified that the Levant experienced a 20% increase in rainfall during the Last Interglacial peak. The study reveals that this wetting was driven by a "thermodynamic" shift, where a warmer atmosphere held more moisture that was then dumped into the desert by intensified Red Sea Troughs. These findings suggest that such localized, high-intensity weather patterns transformed the arid southern Levant into a viable migration path for early humans moving out of Africa.

A study in National Science Review quantified “safe nitrogen boundaries” across 2,847 counties in China. It found that a cross-system management strategy could nearly halve total nitrogen pollution, bring atmospheric emissions within safe limits in most regions, and deliver benefits 2.5 times the investment required. Yet water pollution would remain above safe limits in more than half of the counties, highlighting the need for broader socioeconomic changes.