During the last 25 years, the author has never reallv considered any alternative to the multiprocessor (mP) for general-purpose, cost-effective, nonminimal come -rs. This involvement with mPs at Digital Equipment Corporation (DEC), Carnegie Mellon University (CMU), Encore, Stardent, and Kendall Square Research (KSR) included 16 computers. Fourteen were built, including 7 for research or advance...

main greenhouse gas is continuing to increase in the atmosphere at an alarming rate. The level of the gas at the Zeppelin research station in Svalbard peaked at more than 397 ppm, an increase of more than 2.5 ppm on 2008. Carbon dioxide levels at Svalbard tend to be higher than the global average, but scientists said the carbon dioxide level they had measured was unprecedented, even for that lo...