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.

MIT researchers uncovered the roles of bacteria from the environment as they worked together to break down biodegradable plastic. Understanding how microbes break down plastics could help scientists create more sustainable materials or microbial systems that convert plastic waste into useful materials.

Climate researchers at ETH Zurich show where planting trees makes the most sense with a view to achieving the greatest possible cooling effect on the climate. Reforestation in tropical regions has the greatest cooling effect. Tree planting in the northern hemisphere, on the other hand, reduces the reflection of sunlight and has no effect or even contributes to global warming. The cooling effect on the climate will be a maximum of 0.25°C by 2100. This contribution is important, but it cannot replace the urgently required reduction in greenhouse gas emissions.