Food dyes can appear in a range of foods. Some studies suggest food dyes may cause hyperactivity or allergies, but research in this area is limited. Food dyes are chemical substances developed to ...

Behind closed doors with the experts who study the end of the world—and what they know about humanity’s capacity for survival ...

Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to reduce ...

Earth's ozone layer, an early symbol of global environmental degradation, is improving and on track to recover by the middle of the 21st century. Over the past 30 years, humans have successfully ...