The Atlantification of the Arctic Ocean Is Underway – Hakai Magazine

Illustration of capelin (Mallotus villosus) public domain, via University of Washington's Digital Collection.

In the Fram Strait off Greenland’s west coast, Véronique Merten encountered the foot soldiers of an invasion.

Merten was studying the region’s biodiversity using environmental DNA, a method that allows scientists to figure out which species are living nearby by sampling the tiny pieces of genetic material they shed, like scales, skin, and poop. And here, in a stretch of the Arctic Ocean 400 kilometers north of where they’d ever been seen before: capelin.

And they were everywhere…

El Niño May Break a Record and Reshape Weather around the Globe – Scientific American

Sea surface temperatures in the tropical Pacific Ocean from mid-January through February 2022 compared to the long-term average. East of the International Dateline (180˚), waters remained cooler than average, a sign of La Niña (Graphic courtesy of Climate.gov, based on data from NOAA’s Environmental Visualization Lab)

Seven years ago an exceptionally strong El Niño took hold in the Pacific Ocean, triggering a cascade of damaging changes to the world’s weather. Indonesia was plunged into a deep drought that fueled exceptional wildfires, while heavy rains inundated villages and farmers’ fields in parts of the Horn of Africa. The event also helped make 2016 the planet’s hottest year on record. Now El Niño is back…