by Bruce Grierson • On Vancouver Island, karst researchers hustle to save one of Earth’s most underappreciated—and fragile—ecosystems: an ecosystem hidden in plain sight.
by Hannah Hindley • Originally built as a gateway to space colonization, Biosphere 2 has a new purpose: to breed supercorals strong enough to survive swiftly changing seas. First, scientists must revive the simulated ocean.
by Erik Vance • For thousands of years, ancient Maya kings ruled a vast inland empire in Mexico and Belize. But just how inland was it, really?