Numbers limit how accurately digital computers model chaos

The study, published today in Advanced Theory and Simulations, shows that digital computers cannot reliably reproduce the behaviour of 'chaotic systems' which are widespread. This fundamental limitation could have implications ...

California, China to team up on climate research institute

As tensions between China and the United States ratchet up, former California Gov. Jerry Brown sees a way to bring together the world's largest carbon emitter and a U.S. state that's leading the way in energy standards: climate ...

Climate experts say they hear talk at UN but not much action

Leader after leader told the United Nations on Monday that they will do more to prevent a warming world from reaching even more dangerous levels. But as they made their pledges at the Climate Action Summit, they and others ...

2019 Arctic sea ice minimum tied for second lowest on record

The extent of Arctic sea ice at the end of this summer was effectively tied with 2007 and 2016 for second lowest since modern record keeping began in the late 1970s. An analysis of satellite data by NASA and the National ...

Did mosasaurs do the breast stroke?

Mosasaurs were true sea monsters of late Cretaceous seas. These marine lizards—related to modern snakes and monitor lizards—grew as long as fifty feet, flashed two rows of sharp teeth, and shredded their victims with ...

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