In science news this week: The signature of snow:  “The history of the planet can be found inside a sediment core at the bottom of the ocean, or the cake-like layers of a soil pit, or in the strata of the Grand Canyon. So it shouldn’t be too surprising that the climatic history of water — and a hint about its future — can sometimes be found by digging into a pit of snow.  “Snowpack does have a stratigraphy when … Continue reading SCIENCE NEWS: The signature of snow; Waterproof drone soars over obstacles in fish monitoring; Macroinvertebrates meet microplastics; The gnawing question of saltwater beavers; and more …