Cruise Ship Tourism Threatens Alaska’s Capital

by Christian Karim Chrobog The Guardian    “The noise never stops,” says Karla Hart, her voice competing with the hum of approaching helicopters. “I can feel them before I see them.” She looks at her phone to check a website that monitors air traffic and identifies operators. Hart wants to know whether the pilots are adhering …

Flowing Facts About Wonderful Waterfalls

by interestingfacts.com    Waterfalls are still a scientific enigma. Though people have admired their beauty and power for years, only in the last few decades have geologists focused on the forces that give rise to them and the unique ecosystems they support.    Here’s the word on waterfalls, from the science behind them to their impact …