Alzheimer’s breakthrough: Scientists restore two hours of sleep without clearing brain plaques - Science Daily

In Clayoquot Sound, British Columbia, a partnership between the Tla-o-qui-aht First Nation, Redd Fish Restoration Society and West Coast Kelp grows kelp at scale to support an ecosystem in decline. The fur trade eradicated sea otters; their return enables kelp to thrive. Underwater cameras are monitoring the newly formed kelp forest. The success of the project will be measured by science and the return of ecological abundance. Emily Fulton spends a lot of time in a small boat cruising the waters of Clayoquot Sound off the west coast of Vancouver Island in British Columbia, Canada. As the marine program manager for the nonprofit Redd Fish Restoration Society, she regularly checks on a newly created kelp nursery growing within the traditional territory of the Tla-o-qui-aht First Nation.

Mud from a fjord shows an Atlantic air pattern brought wetter, colder spells to southern Greenland, a clue to how its ice may fare. Greenland’s ice is shrinking as the planet warms. But in the island’s southwest, rainfall and snowfall have been influenced by the same North Atlantic air-pressure pattern for at least 5,000 years. When that pattern tipped one way, the region turned wetter and colder. The record comes from mud on the floor of a Greenland fjord, and it suggests snowfall, not only temperature, shaped how the area’s ice grew and shrank. It doesn’t yet show how glaciers there will respond to the warming ahead. Johan Faust, a researcher at MARUM, the Center for Marine Environmental Sciences at the University of Bremen in Germany, led the work with colleagues in Germany, Norway, Denmark and Canada. A seesaw in the airThe pattern is called the North Atlantic Oscillation. It’s the difference in air pressure between a low that sits near Iceland and a high near the Azores, and it’s strongest in winter. When that difference is large, the pattern is in its positive phase. Northwestern Europe and southwestern Greenland both get more rain and snow.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.