Thu, Feb

The fifth mass extinction occurred 65 million years ago, when an asteroid wiped off the dinosaurs from the face of the Earth. Now scientists fear that the sixth extinction might have already begun.

Signs of overwhelming air pollution in Harbin, a city of 11-million people in Northeastern China was brought to a virtual standstill by choking smog. Incredible images of near-zero visibility forced schools to cancel classes. Highway traffic was paralyzed and the airport shut. NBC’s Rehema Ellis reports.

Read more …Smog shuts down city in China

The study was conducted by researchers at the Carleton University in Canada and Aarhus University in Denmark who found that at least eight #brain regions of polar bears had significant amount of several PFASs including perfluorooctane sulfonate (PFOS) as well as several compounds of the perfluorinated carboxylate (PFCAs).

Read more …Polar Bear Brains have High Levels of Environment Toxins: Study