The EPA and the Army Corps of Engineers have finalized new rules about what kinds of waterways are protected under the Clean Water Act, adding the smaller streams, tributaries and wetlands that feed drinking water for some Americans. Political editor Lisa Desjardins reports on what the shift means, and why it’s drawn both praise and criticism. Continue reading
Millions of acres of farmland in the U.S. have been affected by herbicide-resistant weeds, rendering some fields unable to be farmed. And the problem is spreading, which could mean more lost crops and lost profits. The EPA approved a new herbicide to be used with USDA-approved genetically modified seeds, but opponents have sued, warning it could harm the environment and human health. NewsHour Weekend’s Megan Thompson reports. Continue reading
The devastating Ebola outbreak in West Africa has also had an economic toll for the region, which is home to most of the world’s cocoa production. In the U.S., chocolate prices are rising. But is it because there has been a real change in the cocoa market, or is unfounded fear driving up the increase? Economics correspondent Paul Solman reports. Continue reading
Three 16-year-old high school girls hailing from Ireland claimed the top prize for Google’s 2014 Science Fair with a project that aims to solve the food crisis — with the help of bacteria.
WASHINGTON — The Agriculture Department has approved the use of genetically modified corn and soybean seeds that are resistant to a popular weed killer. Continue reading
Vitamin A deficiency is a deadly threat to kids and pregnant mothers in the Third World. In the Philippines, the best nutrient sources are rarely part of the daily diet, so researchers have tried adding vitamin A to rice, a staple food. Science correspondent Miles O’Brien investigates the debate that’s grown up over the development of golden rice, a genetically modified crop. Continue reading
The September issue of National Geographic examines the Paleo Diet as a way to feed the planet’s future generations — and offers a more complete look at what our ancestors really ate. Science writer Ann Gibbons joins Hari Sreenivasan to discuss how the real Paleo Diet varies among cultures. Continue reading
Although the disease is being studied, scientists are still unsure about how PEDv spreads, or how it originated. Continue reading