Digital Gems

Digital Gems

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Why we love drugs · Vox
Why we love drugs · Vox
Vox's Sean Illing talks with author Michael Pollan about his new book This Is Your Mind on Plants, why some societies condemn drugs that other societies condone, what will happen as the war on drugs draws to a close, and whether or not taking psychedelic drugs can improve huamnkind.
Why we love drugs · Vox
Projected changes in persistent extreme summer weather events: The role of quasi-resonant amplification
Projected changes in persistent extreme summer weather events: The role of quasi-resonant amplification
Persistent episodes of extreme weather in the Northern Hemisphere summer have been associated with high-amplitude quasi-stationary atmospheric Rossby waves, with zonal wave numbers 6 to 8 resulting from the phenomenon of quasi-resonant amplification (QRA). A fingerprint for the occurrence of QRA can be defined in terms of the zonally averaged surface temperature field. Examining state-of-the-art [Coupled Model Intercomparison Project Phase 5 (CMIP5)] climate model projections, we find that QRA events are likely to increase by ~50% this century under business-as-usual carbon emissions, but there is considerable variation among climate models. Some predict a near tripling of QRA events by the end of the century, while others predict a potential decrease. Models with amplified Arctic warming yield the most pronounced increase in QRA events. The projections are strongly dependent on assumptions regarding the nature of changes in radiative forcing associated with anthropogenic aerosols over the next century. One implication of our findings is that a reduction in midlatitude aerosol loading could actually lead to Arctic de-amplification this century, ameliorating potential increases in persistent extreme weather events.
Projected changes in persistent extreme summer weather events: The role of quasi-resonant amplification
Here's Precisely How to Quit Your Job
Here's Precisely How to Quit Your Job
If you need to quit by Tuesday to give two weeks’ notice but your boss can't meet until Thursday, what are you supposed to do?
Here's Precisely How to Quit Your Job