The Paleocene-Eocene Thermal Maximum (PETM to its friends) occurred about 10 million years after the extinction of the dinosaurs and 56 million years before the present. It involved the addition of enough carbon to Earth’s atmosphere to cause 5-8°C of global warming, which lasted almost 200,000 years. That caused a considerable amount of change in the biosphere, including a mass extinction among a group of bottom-dwelling marine organisms. Given that we’re also messing with the climate system today, we have good reason to be curious about the warming of the PETM. … [Read more...] about Record of past warming event shows carbon was emitted fast—and twice
Dalai lama ethics for the new millennium
Edwards’ new patient, however, had never been to Latin America. She had never even left the USA. She was, Edwards explains, “your All-American girl,” hardly a candidate for a disease that mainly infected poor, rural populations in Central and South America. Edwards repeated the blood test, just to be sure. Again it turned up positive for Chagas. Given the girl’s young age and the high risk for heart failure if the disease is untreated, Edwards decided to treat her with anti-parasitic drugs. … [Read more...] about Can America cope with a resurgence of tropical disease?
The unexpected depths of these earthquakes raise questions about quake monitoring. Scientists don't know whether these temblors are widespread and have simply been missed at other faults because of the difficulty in monitoring small, deep quakes, or, if the NIF is unique and somehow the fault has deep seismicity that extends to the upper mantle, the researchers said. … [Read more...] about Unexpectedly Deep Seismic Activity Found Along California Fault
Bement led one such agency, the National Institute of Standards and Technology, before former President George W. Bush asked him to move over to NSF. NSF already has programs to foster “early-stage” technology research and development, Bement says. He’s worried that Schumer’s bill, which authorizes the higher spending levels, could send a message to the congressional panels that actually appropriate the money that such activities are more important than NSF’s core mission of funding fundamental, curiosity-driven research. … [Read more...] about U.S. lawmakers unveil bold $100 billion plan to remake NSF
Carqon first made a splash in the bike industry with a well-received three-wheeled cargo bike way back in 2016, but it never made it beyond the concept phase. The Carqon I reviewed is a near-final version of the two-wheeled aluminum cargo bike that’s available to purchase on June 2nd in the Netherlands, Germany, Belgium, France, and Denmark. Sales will be made through its network of dealers, but it can also be purchased online. It just won’t be delivered directly to your home. Dealers are responsible for the final check before handing the bike over to new owners and for dealing with any service and warranty issues. That makes sense for a bike used to transport your family that’s priced between €4,999 (400-watt battery, with 10-speed derailleur) to €6,499 (dual 500-watt batteries, gear hub, and belt drive). My review bike is priced at €5,299 (about $5,800) before any state subsidies are subtracted. (More on that later.) … [Read more...] about Carqon electric cargo bike review: urban transport, solved