How Light Pollution Works

From the 1970s to the early 1990s a patch of land in Hong Kong the size of just a few football fields was the most densely-populated area in the world – and by a longshot. Even more remarkable, it was an outlaw land that somehow formed a tight community.See omnystudio.com/listene ...  عرض المزيد

Movies on planes have changed a lot in the last couple of decades. Today, we'll go over how this stuff works. See omnystudio.com/listener for privacy information. 

Ever gaze up at the starry night sky? This stunning view is at risk of disappearing -- unless we act now, says astrophysicist Kelsey Johnson. In this fascinating, unexpectedly funny talk, she explains how light pollution affects almost every species on earth (including us) and sh ...  عرض المزيد

Most people in North America can't see the Milky Way. The reason? We're ensconced in a luminous fog of artificial lighting 24/7. The evolution of lighting technology over the last century has made it possible to live, work, and play at any hour - day or night. But light pollut ...

Subsistence fishing employs hundreds of millions of people around the world. It’s an enormous business worth trillions of dollars. It’s also a dirty business. High-cost diesel motors and expensive, inefficient lights consume huge amounts of fossil fuels, leaving a considerable ca ...  عرض المزيد

Avez-vous déjà entendu parler du concept d'Heure de la Terre ou Earth Hour en anglais ? Concrètement, il s'agit d'une grande opération davantage symbolique que véritablement efficace consistant à éteindre les lumières pendant une heure. Avec cette description, je suis sur que ...