After 14 months without tourists, Kauai's North Shore tests the waters again
June 21, 2019, 12:57 p.m. by Russell McLendon
The Hawaiian island has reopened its northern coast to tourists, but with new restrictions meant to protect local communities and wildlife.
Seals help researchers understand strange holes in Antarctic sea ice
June 13, 2019, 8:15 a.m. by Mary Jo DiLonardo
Polynyas can act as oases for penguins, whales and seals, giving them a place to breathe.
Why the extinction of nearly 600 plant species in 250 years is a big deal
June 11, 2019, 11:04 a.m. by Mary Jo DiLonardo
Researchers say the real number is likely much higher.
More ghost forests are rising up, and that's not good news
June 11, 2019, 8:18 a.m. by Angela Nelson
Plus, 5 places in the U.S. where you can visit a ghost forest.
After deadly season, new rules would limit who can climb Everest
May 28, 2019, 8:54 a.m. by Mary Jo DiLonardo
Hundreds of hikers battle altitude sickness and frostbite as they wait in line to summit.
Costa Rica has doubled its forest cover in the last 30 years
May 24, 2019, 8:26 a.m. by Mary Jo DiLonardo
Half the country's land surface is now covered with trees.
3 new Dark Sky Parks reveal wonders of the night sky
May 23, 2019, 1:15 p.m. by Angela Nelson
International Dark-Sky Association honors places that preserve unpolluted views of the sky.