From concrete to coral: breeze blocks make a splash regenerating reefs

There hasn’t been much good news about coral recently, but in Grenada, one project is using towers of concrete to encourage marine life and create new reefsThe outboard motor roared into life and the rope snapped tight, flicking sand across the beach. For a fraction of a second, the inertia of half a ton of concrete held sway before the entire construction slid down the runners and into the surf. I fully expected it to sink, leaving a tattered rope to skip across the wave tops, but the tea