A new Nature Communications study spots a mineral “ring” and manganese signature in Mars’ Utopia Planitia—clues that could finally pin down the timeline of a lost northern ocean.
Companies are adapting their sustainability strategies amid political and market shifts, choosing between bold public commitments or quiet, strategic language shifts.
Texas startup Grassroots Carbon partners with ranchers to remove 2 million tons of carbon, offering a financial lifeline and catching corporate giants' attention.
Patricia Lewis exits UnitedHealth, leaving a leadership gap in sustainability. Can the healthcare giant maintain its ambitious green goals without her?