TOKYO (AP) — To dump or not to dump a little-discussed substance is the question brewing in Japan as it grapples with the aftermath of the nuclear catastrophe in Fukushima five years ago. The substance is tritium.
Nearly 25 percent of the world's malnourished population lives in sub-Saharan Africa, where more than 300 million people depend on corn, or maize, as their main food source. Maize is the most widely harvested agricultural .
Watermelon Snow: Not Edible but Important for Climate Change
Dead common murres lie washed up on a rocky beach in Whittier, Alaska, on Jan. Federal scientists in Alaska are looking for the cause of a massive die-off of common murres, one of the Arctic's most abundant seabirds.
Projections of how much the melting of ice sheets will contribute to sea-level rise can vary by several meters based on the rate of iceberg calving at the edges of those ice sheets. To provide climate scientists with models .