Spurred by what they see as a sluggish, ineffectual response to the existential threat of global warming, student activists from around the world plan to skip school today for what organizers call a Global Climate Strike.

The focus for young activists is the United Nations Climate Action Summit taking place Monday in New York City.

It happens on every road trip — you're driving from city to city, natural wonder to natural wonder. Every hour is a magical combination of rustic beauty and historic landmarks and fascinating people. Until, one day, things change: The scenery turns gray, the people lose their charm. You find yourself at a rest stop with no toilet paper, where the vending machine eats your last single. It's 90 miles to the nearest motel. Small, but menacing-looking rodents scurry across the road.

You, my friend, are in Podunk. Or as some people say, "Some Podunk town in the middle of nowhere."

Firearms manufacturer Colt says it is suspending production of its popular AR-15 semi-automatic assault-style rifle for the civilian market, saying it will concentrate instead on fulfilling contracts from the military and law enforcement.

Charlie Winter, a London-based terrorism researcher, was dining with friends one recent evening when the conversation turned to whether it is ethical to eat meat.

Someone brought up slaughterhouse conditions, Winter said, and he instantly grew uneasy. He stayed for a while longer, squirming, and then finally left the room. That word — "slaughterhouse" — had conjured images of one of the most gruesome ISIS videos he'd come across. The militants had filmed a mass execution in a slaughterhouse, casting their prisoners as the animals.

You have $1, and you're thinking about investing it in the stock market. All you know about the company you're going to invest in is that it's a tech company with more women on its workforce than the average tech firm.

How much of your dollar do you invest?