Learning
Mapping Reveals Rapid Changes to the Arctic Seafloor as Ancient Submerged Permafrost Thaws
“The ongoing melting of relict permafrost under the Arctic Shelf, expulsion of brackish waters, and the formation of new ground ice within the near seafloor sediments work in concert to create the unique and rapidly changing morphology observed on the Arctic seabed,” said Paull. “These rapid changes to the seafloor demand our attention. We need to understand how the decay of relict submarine permafrost will impact the vast areas underlying the Arctic continental shelves. This groundbreaking research has revealed how the thawing of submarine permafrost can be detected, and then monitored once baselines are established.” The team expects that similar processes may also be occurring in other submarine permafrost systems. How widespread similar changes are on the Arctic shelves remains unknown, as this is one of the first areas in the Arctic studied with multiple multibeam bathymetric surveys. However, permafrost thawing may be an important process in sculpturing the seafloor throughout the Arctic." more »
President Biden Signs Executive Order to Strengthen America’s Forests, Boost Wildfire Resilience, and Combat Global Deforestation
"Today, on Earth Day, President Biden signed an Executive Order to expand his Administration’s historic and bold efforts to tackle the climate crisis, make our nation more resilient to extreme weather, and strengthen local economies. The President will sign the Executive Order in Seattle, Washington — rounding out a trip across the West focused on lowering costs for families and protecting communities from intensifying climate impacts. Wildfires and extreme weather events are growing in frequency and ferocity, engulfing communities in the West and across the country and costing lives, homes, and money." more »
Bree Rosenblum, Professor of Global Change Biology at UC Berkeley, Urges Stopping Blaming Each Other For the Environmental Crisis We’re In
Anne Brice, Berkeley News, and Kara Manke|They start with the obvious things, like we’re cutting down habitat. And then, I push them to map those down to their causes, so every single time, they’re like, “Oh, I know. Habitat destruction is leading to species extinction.” It’s like, “Yeah, but what’s causing habitat destruction?” And so, they kind of keep going, right? Well, what’s causing habitat destruction? more »
Ferida's Wolff's Backyard: Robin At The Window
It stopped when night came and I hoped that it was finished with whatever prompted its action. No such luck. I was awakened in the morning by the now-familiar thumps. The robin was back at it. I thought that maybe if I blocked off the window with a blanket it would discourage the robin. It continued anyway. I removed the blanket and looked straight at the bird, telling it to leave. It just stared at me but didn’t fly away. more »