Poor Mojo's Newswire

LANSING -- Changes to the concealed weapons law passed the state House and Senate late Thursday, allowing trained gun owners to carry their weapons in formerly forbidden places, such as schools, day care centers, stadiums and churches. Schools, however, and privately owned facilities could opt out of the new law if they don't want people carrying guns in their buildings. The bill also would transfer the power of granting concealed-weapons permits from county gun licensing boards to the county sheriff. State Rep. Joel Johnson, R-Clare, called the bill a "pro-public safety bill" because it allowed gun owners to be an asset to public safety in volatile situations.

AROUND 251 million years ago, over 90 per cent of the species on Earth suddenly went extinct. Their killer may not have been a devastating meteorite or a catastrophic volcanic eruption, but a humble microbe. The prevailing theory is that the mass extinction at the end of the Permian period was triggered by volcanic eruptions over a vast area of what is now Siberia. This led, among other things, to a dramatic rise in greenhouse gas emissions. But the scenario just doesn't fit the facts, says Daniel Rothman of the Massachusetts Institute of Technology. From his analysis of an end-Permian sediment sample from China, Rothman says carbon levels surged much too quickly for geological processes to be at work. Microbes can generate carbon compounds that fast, though. When Rothman's group analysed the genome of Methanosarcina - a methanogen responsible for most of Earth's biogenic methane today - they discovered that the microbe gained this ability about 231 million years ago. The date was close to that of the mass extinction, but not close enough to suggest a link. But Methanosarcina needs large amounts of nickel to produce methane quickly. When the team went back to their sediment cores, they discovered that nickel levels spiked almost exactly 251 million years ago - probably because the Siberian lavas were rich in the metal. That suggests Methanosarcina did trigger the extinction, Rothman told the American Geophysical Union meeting in San Francisco last week.

When we first collected much of this data, it was after the Aurora, Colo. shootings, and the air was thick with calls to avoid “politicizing” the tragedy. That is code, essentially, for “don’t talk about reforming our gun control laws.” Let’s be clear: That is a form of politicization. When political actors construct a political argument that threatens political consequences if other political actors pursue a certain political outcome, that is, almost by definition, a politicization of the issue. It’s just a form of politicization favoring those who prefer the status quo to stricter gun control laws. Since then, there have been more horrible, high-profile shootings. Jovan Belcher, a linebacker for the Kansas City Chiefs, took his girlfriend’s life and then his own. In Oregon, Jacob Tyler Roberts entered a mall holding a semi-automatic rifle and yelling “I am the shooter.” And, in Connecticut, at least 27 are dead — including 18 children — after a man opened fire at Sandy Hook Elementary School. If roads were collapsing all across the United States, killing dozens of drivers, we would surely see that as a moment to talk about what we could do to keep roads from collapsing. If terrorists were detonating bombs in port after port, you can be sure Congress would be working to upgrade the nation’s security measures. If a plague was ripping through communities, public-health officials would be working feverishly to contain it. Only with gun violence do we respond to repeated tragedies by saying that mourning is acceptable but discussing how to prevent more tragedies is not. But that’s unacceptable. As others have observed, talking about how to stop mass shootings in the aftermath of a string of mass shootings isn’t “too soon.” It’s much too late. What follows here isn’t a policy agenda. It’s simply a set of facts — many of which complicate a search for easy answers — that should inform the discussion that we desperately need to have.