1. Oceans

    Tiny bits of iron may explain why some icebergs are green

    Scientists originally thought the green hue of some icebergs came from carbon particles. Instead, iron oxides may color the ice.

  2. Oceans

    Oceans that are warming due to climate change yield fewer fish

    Warming water due to climate change is diminishing sustainable fishery yields in the world’s oceans.

  3. Life

    Readers ponder mitochondria, Neandertal diets, deep sea corals and more

    Readers had questions about mitochondrial DNA, Neandertal diets, deep ocean corals and more.

  4. Climate

    Tidal floods driven by climate change may hurt small businesses

    Parking data from Annapolis, Md.’s historic downtown shows how tidal flooding, driven by sea rise, can hurt local business.

  5. Climate

    An Antarctic expedition will search for what lived under the Larsen C ice shelf

    The fourth attempt to investigate the seafloor once hidden by the Larsen C iceberg may have the best chance yet of success.

  6. Climate

    2018 was the fourth-hottest year on record, and it’s getting even hotter

    Record-level rains and temperatures struck different regions of the world in 2018, the fourth warmest year on record.

  7. Climate

    Collapsing ice cliffs may not contribute to sea level rise

    Scientists debate a controversial hypothesis that suggests that massive crumbling ice cliffs could speed up future sea level rise.

  8. Climate

    Climate change might not slow ocean circulation as much as thought

    New measurements may call for a rethink of what controls ocean circulation in the North Atlantic.

  9. Animals

    Young emperor penguins brave icy, winter waters in their first year

    Young emperor penguins learn survival skills on their own, including how to navigate Antarctica’s icy winter ocean.

  10. Tech

    Desalination pours more toxic brine into the ocean than previously thought

    Desalination plants help offset the world’s growing water needs, but they also produce much more supersalty water than scientists realized.

  11. Oceans

    Floating seabirds provide a novel way to trace ocean currents

    Seabirds idly drifting with ocean currents provide a novel way to track and understand how these flows change with time and location.

  12. Animals

    Nearly 200 Great Barrier Reef coral species also live in the deep sea

    There are more coral species lurking in the deep ocean that previously thought. That could be good news for their shallow water counterparts.