Quirks And Quarks Complete Show From Cbc Radio

This little piggy escaped and wreaked havoc on crops and the environmentWild pigs that have escaped or been released from farms have established self-sustaining populations in the prairies and central Canada and are wreaking havoc on farms and wilderness landscapes alike. A new study, led by Ryan Brook at the University of Saskatchewan, has tracked pigs to try to understand where, and how far, this porcine invasion can go. The research was published in the journal Biological Invasions.Satellites and space junk burning up in the atmosphere is a new kind of pollutionScientists doing high-altitude sampling of material deposited when meteorites burn up in the atmosphere are seeing a shift in the material they’ve been collecting. In a recent study in the journal PNAS, scientists found that increasingly the particles contain material that could have only come from vaporized space junk, such as the upper stages of rocket boosters and re-entering satellites themselves. Daniel Cziczo, an atmospheric scientist at Purdu