Scientists have discovered a new type of sedimentary rock made of debris from slag heaps, formed in the geological blink of an eye. Could this be good news, asks Graham Lawton

Scientists have discovered a new type of sedimentary rock made of debris from slag heaps, formed in the geological blink of an eye. Could this be good news, asks Graham Lawton
East Africa may look very different in five to ten million years.
The answer, as usual, is somewhere in the middle.
That would be the dream.
The answer is right under your nose. Obviously.