xLoess : An aeolian sediment formed by the accumulation of wind-blown silt and lesser and variable amounts of sand and clay that are loosely cemented by calcium carbonate. Loess is usually homogeneous, highly porous, and is traversed by vertical capillaries t
Scientists who study plants in the Sonoran Desert are worried about global warming. While desert winters have become warmer and drier over the years, climate changes have pushed the arrival of winter rains...Read more