For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...
Arctic sea ice hit its 2025 summer minimum without setting a record low on Sept. 10, despite a historically low winter maximum earlier in the year. Scientists say sea ice loss has slowed over the past ...
Melting Arctic ice is revealing a hidden world of nitrogen-fixing bacteria beneath the surface. These microbes, not the usual cyanobacteria, enrich the ocean with nitrogen, fueling algae growth that ...
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