Twenty locations along the river including Pa. will be sampled for this group of "forever chemicals" associated with reproductive problems, liver, kidney and thyroid disease, and cancer.
Study finds that worsening Amazon fires are melting Andean glaciers; soot builds up on snow, absorbing more solar radiation.
A record 45 million people across southern Africa are in need of in urgent need of food aid, the UN has said.
Degradation of the planet's natural systems is the most worrisome threat to social and political stability in the next 10 years, according to the World Economic Forum's annual survey.
Bali is perhaps too beloved: the Indonesian island is in the midst of a drought and water is running out fast, pitting local water needs against those of the powerful tourism industry.
Government after government has spent millions on water-treatment plants. But thousands of households still can't drink from the tap.
Environmental advocates on Wednesday presented a grim picture of polluted streams, plastic-filled rivers, and underfunded state departments as they called on the Legislature to pony up more money for clean water programs.
A shortage of rain and snow, a booming population and wasteful consumption have drained the Afghan capital's water basin and sparked a race to the bottom as households and businesses bore deeper and deeper wells in search of the precious resource.
As we celebrate a World Bicycle Day like no other, can the U.S. keep the momentum and attention the coronavirus pandemic has brought to bicycling?
Twenty-one species molt from brown to white to survive the winter season. But climate change has created a mismatch between their snowy camouflage and surroundings.