The combination of a huge expanse of roasted land and an upside-down thermal pattern allows billows of high wind to free sand and dust from the Sahara’s hot surface, lofting it high on buoyant thermals and carrying it far to the west. As the air acquires a heavier and heavier burden of dust, it becomes even more erosive, sandblasting the arid landscape ever more thoroughly. … [Read more...] about A massive Saharan dust plume is moving into the Southeast US
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"All data collection must be restricted to controlling the spread of COVID-19 and should not be used for any other purpose, including law enforcement, national security or immigration control. It must also not be made available to any third party or for commercial use. Any individual's decision to download and use contact tracing apps must also be entirely voluntary." … [Read more...] about Amnesty calls out countries with ‘most dangerous’ contact tracing apps
"This sharp rise creates substantial environmental and health pressures and demonstrates the urgency to combine the fourth industrial revolution with circular economy. The fourth industrial revolution either will advance a new circular economy approach for our economies or it will stimulate further resource depletion and new pollution waves," International Solid Waste Association president Antonis Mavropoulos said. … [Read more...] about UN reports global e-waste production soared beyond 53 million tonnes in 2019
A recent study of Greenland ice cores now suggests the culprit is Mt. Okmok, in what is now Alaska, half a world away from Rome. Every year in the Arctic, new snow piles up and gets compacted into ice layers, which preserve a record of whatever fell with the snow. In north-central Greenland, environmental researcher Joe McConnell (of, ironically, the Desert Research Institute) and his colleagues found volcanic ash and sulfuric acid in ice layers laid down in the early winter of 43 BCE and continuing for the next two years. … [Read more...] about The volcano that caused famines in ancient Rome? It was in Alaska
This very real glass-half-empty picture of power versus weight also kills efficiency, with an official 20mpg city and 27mpg highway for what is essentially a subcompact car with a small back seat. (We saw a 20.6mpg overall average during our test.) Yes, it has direct injection, twin cams, and 16 valves, but those are commonplace now and certainly doesn’t erase the overburdened nature of this little 1.6 liter when saddled with two tons. In the same segment, BMW's 228i convertible offers 240hp (179 kW), 0-60 acceleration performance of about 5.7 seconds, and it tips the scale at 3,650lbs (1,655kg), all for a very similar $38,650. The Audi A3 is another premium competitor, but with Volkswagen's Eos and Chrysler's 200 convertibles now retired, the Buick plays on a relatively empty pitch, making the adjacent game between the Camaro/Mustang convertibles seem even more fun. … [Read more...] about Can good looks save the Buick Cascada from mediocrity?