pollution

Arts, Culture & Media

Melting Permafrost

For today's Geo Quiz, we head to the frozen north. We have heard a lot about the problem of melting ice as climate change warms up the Arctic. But scientists are also worried about something else that is melting up there — permafrost.

Health & Medicine

Clean Water Scarce in Pakistan

Political instability and violence make Pakistan a U.S. foreign policy priority. But there's another looming crisis there too. Pakistan is fast running out of water and much of what IS available is making people sick. On PRI's The World.

Arts, Culture & Media

Cleaning up Mount Everest

A team of Sherpas is gearing up to ascend Everest to remove thousands of pounds of garbage from elevations known as the ?death zone.' The group may also recover the remains of climbers who died. The BBC's Joanna Jolly speaks with anchor Marco Werman.

Science, Tech & Environment

A proposed Ohio gas pipeline is raising safety and property rights concerns for landowners in Ohio

Believe it or not, the Keystone XL pipeline is not the only pipeline in North America. Pipelines that carry natural gas from wells to refineries stretch hundreds of miles in the US, crossing public and private land. Many of these pipelines are planned for densely populated areas, and in some states, local opposition has been fierce.

Science, Tech & Environment

Rising carbon dioxide levels may reduce the nutritional value of important foods

Rising levels of atmospheric CO2 are already having significant impacts on climate, weather patterns and water supplies. Scientists expect increased carbon dioxide levels will also affect agriculture across the world, in ways we can't predict. The results of a recent study suggest that one of those affects could be quite alarming.

Science, Tech & Environment

What deteriorating air quality looks like around the world

The Chinese government announced Monday that it plans to take more than five million vehicles off the road to improve air quality, including 330,000 cars in Beijing. This announcement comes only weeks after the World Health Organization announced that only 12 percent of cities reporting on air quality meet their standards for safe levels. With the help of our newsroom designers, we put together a list of places recently affected by deteriorating air quality and incidents of smog.