Runners, bicyclists and walkers in Columbia Park have probably noticed a couple 1,500-pound basalt slabs installed along the path in recent days. Those are part of one local teacher’s decades-long ...

On the banks of the Columbia River, tall columns of rock poke out from the cliffs. “So you see all of these black rocks that are on either side of us, on either side of the river? Those are basalts.

Spreading crushed basalt on cropland and using special fertilisers that stop nitrogen loss could cut global agricultural emissions of a potent planet-warming gas by 25 per cent. Nitrous oxide is a ...

Gaseous CO2 dissolves in rainwater, forming carbonic acid. Even if the rainwater is unpolluted — not so-called “acid rain” — ...