The southern Indian Ocean off the west coast of Australia is becoming less salty at an astonishing rate, largely due to ...

A new study shows that during the last two deglaciations, i.e., the transition from an ice age to the warm interglacial periods, meltwater from the Antarctic ice sheet intensified stratification in ...

Scientists say Earth is shifting from a merely warm planet toward what some describe as a “Hothouse” state, driven not just by smokestacks and tailpipes but by quieter feedbacks and thresholds. I see ...

Key climate tipping points may be closer than expected, raising the risk of accelerating warming, sea-level rise, and ...

Twenty years have passed since scientists released the first version of the Arctic Report Card, now a staple at the Fall Meeting of the American Geophysical Union.

Scientists have long debated whether most of Earth's vital liquid was delivered via icy comets or was homemade ...

Cruise ships act as moving ecosystems, reshaping water, waste, and wildlife interactions as they travel between ports worldwide.

Simulations suggest that two enormous masses of hot rock have been involved in generating Earth’s magnetic field and giving it an irregular shape ...

Geoscientists say Earth will be home to one massive supercontinent about 200 million years from now; there are four prominent versions of this mega-continent. The climate might be surprisingly balmy ...

The planet has always changed. Ice ages came and went, oceans rose and fell, climates shifted over geological timescales.

Climate change is rapidly freshening one of Earth’s saltiest ocean regions in the Southern Indian Ocean, potentially disrupting circulation.

The Atlantic, Pacific, Indian, Arctic, and Southern Oceans form a vast, interconnected world beneath the waves. Together, ...