Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet ...

Hikers in New Zealand risk polluting the “clearest lake in the world” with a microscopic alga carried on their boots.

For human visitors, an accessible overlook atop a 70-foot-high bluff reveals the blue oasis of the lake. During winter, a crust of ice normally freezes near the shore. Last winter, not so much.

Conservationists and the Ngati Apa iwi are reportedly concerned that the invasive algae Lindavia may contaminate Blue Lake. Also known as ‘lake snot’ due to its sticky, mucous-like appearance, this ...

Sustained blue light exposure from electronic devices and digital screens is not kind on your overall health, and has been linked to eye strain, macular degeneration and poor sleep quality.

One thing's for sure: He'll love these gifts from Vuori, Lego and Uncommon Goods almost as much as loves you. (Getty) ...

Your love is priceless. These Valentine's Day gifts, on the other hand, all come in under $100. (Getty) ...

ABC News’ Phil Lipof spoke with retail analyst and financial expert Hitha Herzog on the best ways to navigate returns of unwanted gifts and how some retailers are cracking down. An 8-year-old ...

The film focuses on a series of hunger strikes organized by those incarcerated at California’s Pelican Bay State Prison, in protest of conditions in highest-security prisons. By Alissa Wilkinson ...

Thank you for reporting this station. We will review the data in question. You are about to report this weather station for bad data. Please select the information that is incorrect.