The energy-efficient desalination system produces fresh water without chemical additives and transforms leftover salts into useful materials. Big takeaways：

A new desalination method produces drinking water from seawater without chemical additives.

The solar-powered system uses specially engineered black metal to absorb sunlight.

Its self-cleaning surface separates and collects salts, instead of dumping them as harmful brine waste.

From the salts, the system can extract lithium, a key material for rechargeable batteries.

The approach could help address global water shortages and growing mineral demand.

Researchers at iC3 have found a way to improve records of past high latitude ocean change using tiny plankton shells called foraminifera. By growing these foraminifera under controlled cold-water conditions, the team has extended a key temperature tool into the range most relevant for subpolar and polar oceans. The study’s results matter for anyone using marine sediments to reconstruct past climate, ocean circulation and carbon cycle change.

New research reveals a potential link between the gut microbes of a fish and global ocean processes, offering new insight into how marine ecosystems help regulate ocean chemistry and the marine carbon cycle.

An irreversible shift in the chemical make-up of the Arctic Ocean driven by climate change is disrupting the region’s food chain, a study suggests.