Tunnel

School kids in East Los Angeles are experimenting with planting tunnel gardens, drawing on an ancient technique that uses less water and prevents erosion. As Celeste Wesson reports, tunnel gardens use a canopy that shades plants from harsh sun and enriches the soil with nutrients.

Workers building the country’s proposed nuclear waste storage site say Yucca Mountain is already a danger even before any radioactive waste arrives. The workers say they were exposed to hazardous silica dust during years of tunnel digging. Jeff Young’s investigation finds evidence that energy officials took little action although they knew the dust exposures were […]

Some of the world’s longest tunnels figure in today’s Geo Quiz. Can you name the newly completed tunnel through the Alps on the north-south axis in Europe?