Anyone who has cleaned a beach can rattle off the head-shaking trash they’ve encountered, from cigarette butts to dirty diapers. But what volunteers sweeping Monmouth Beach found one July day in 2017 ...

Have you ever noticed that balloons blown up by mouth don't float in the air, while balloons filled with helium gas do float? To understand this question, let's look at why things float. A person ...

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 Initiative has ...

When relief agencies set up refugee camps, they need to bring in power quickly. That normally means diesel generators, which, while reliable, can be expensive to operate. One possible alternative: ...

It’s the Great Balloon Glow, Kansas City! The National World War I Museum is hosting its second Great Balloon Glow event starting at 5 p.m. on Saturday on the museum and memorial grounds. Eighteen hot ...

Did you know that some mornings in Turkey, the sky fills with more than a hundred balloons at once? The sun rises slowly over ...