the Guardian
‘It’s an open invasion’: how millions of quagga mussels changed Lake Geneva for ever
The molluscs are decimating food chains in Switzerland, have devastated the Great Lakes in North America, and this week were spotted in Northern Ir...
 Invasive mussels have caused a disaster in Lake Geneva.
the Guardian
Trump signs order reclassifying marijuana as less dangerous
Change will loosen limits on research and certain regulations but stops short of making marijuana legal
 The US will make it easier to do research on marijuana but did not end criminal penalties for using it.