articles

Until recently, glaciers in the United States have been measured in two ways: placing stakes in the snow, as federal scientists have done each year since 1957 at South Cascade Glacier in Washington state; or tracking glacier area using photographs from airplanes and satellites.

In 1995, the Governing Council of the United Nations Environment Program called for a united, global effort to reduce persistent organic pollutants (POPs) — synthetic chemicals such as PCBs, DDT, and dioxins. The compounds were known to persist and accumulate far from their sources, polluting the environment and causing adverse health effects in humans.

Groundwater may play an unrecognized role in thawing Arctic permafrost following wildfires, according to new research.

Tuna is one of the most ubiquitous seafoods. It can be eaten from a can or as high-end sashimi and in many forms in between. But some species are over-fished and some fishing methods are unsustainable. How do you know which type of tuna you’re eating?

Some tuna is certified as sustainably caught by groups such as the Marine Stewardship Council (MSC) that set standards for sustainable fishing. But these certifications are only good if they are credible.

On New Year’s Day, 1909, a grocer named Julius Fried and his novice drilling crew, the Lakeview Oil Company, spudded a well in the desert valley scrub in the Midway-Sunset oil field, 110 miles north of Los Angeles. For the first 1,655 feet, the well yielded only dust, and then Lakeview ran out of money.