For Mick Baron, the giant kelp forests of Tasmania were a playground, a school and a church. The former marine biologist runs a scuba-diving center on the Australian island’s east coast, and rhapsodizes about the wonders of the seaweed’s dense habitats. “Diving in kelp is one of the most amazing underwater experiences you can have,” the 65-year-old says, likening it to flying through the canopy of a terrestrial rain forest. “You won’t find a single empty patch in a kelp forest … From the sponge gardens on the seafloor all the way up to the leaves on the surface, it’s packed with life.”
Image: Despite the ocean floor’s proximity and essential role to human survival, we have mapped less of its topography than the surface of Mars. Courtesy of Chris Leidy—Assouline
