Soil Moisture Drives Year-to-Year Change in Land Carbon Uptake

Earth’s land ecosystems absorb a large portion of all the carbon dioxide emissions produced by human activities, helping to slow global warming. On average for a given year, plants and soil take up, or fix, about 30 percent of human emissions. But from one year to the next, that number can be as high as […]

Clear as Mud: How Tiny Plants Changed the Planet, 488 Million Years Ago

Nearly 500 million years ago, Earth’s lowland landscapes were dominated by vast sandy, gritty plains. They then underwent a major, irreversible change, after which these landscapes became dominated by thick layers of mud. Now, new research from Caltech explains that this drastic landscape change was instigated by the evolution of early tiny plants, like mosses […]