In Alaska, Summer’s Getting Too Hot for the Salmon Run

In Alaska, Summer’s Getting Too Hot for the Salmon Run

This story originally appeared in High Country News and is part of the Climate Desk collaboration.Last summer, across southwest Alaska’s Bristol Bay region—home to the largest sockeye salmon fishery in the world—tens of thousands of fish washed up dead along riverbanks. Rivers running at temperatures above the threshold for salmon health were killing the fish…

A New Air Taxi Model Takes Design Cues From a Far-Flying Bird

A New Air Taxi Model Takes Design Cues From a Far-Flying Bird

Air-taxi startup Beta Technologies debuted its new aircraft Friday with a dramatic helicopter airlift of the sleek white model across Lake Champlain from Burlington, Vermont, to Plattsburgh, New York. Code-named Alia, the electric vertical-takeoff-and-landing (eVTOL) airplane is the successor to Ava, a smaller prototype the company used to experiment with propulsion strategies and learn about…

Deepfakes Aren’t Very Good. Nor Are the Tools to Detect Them

Deepfakes Aren’t Very Good. Nor Are the Tools to Detect Them

We’re lucky that deepfake videos aren’t a big problem yet. The best deepfake detector to emerge from a major Facebook-led effort to combat the altered videos would only catch about two-thirds of them.In September, as speculation about the danger of deepfakes grew, Facebook challenged artificial intelligence wizards to develop techniques for detecting deepfake videos. In…