A new kind of concrete could help regrow depleted kelp forests off Nova Scotia’s coast

Plus: the extinct mega-herbivore that once shaped kelp forests, the rare fern fueling a Cape Breton golf course controversy, the great gray owl’s hunting skills revealed, and the continuing crash of Canada’s fish stocks despite investment.

Kelp’s potential as a commercial crop is finally being recognized — and, as kelp forests vanish worldwide, so is its importance in coastal ecosystems