Business

If you're a woman, there's a good chance you've used Johnson's Baby Powder at some point. It smells good, and it can keep you dry.

But is it dangerous?

Dr. Daniel Cramer says yes. He's a professor of obstetrics and gynecology at Brigham and Women's Hospital in Boston. He says talc – the mineral in talcum powder – can cause ovarian cancer.

"Overall, women may increase their risk in general by about 33 percent by using talc in their hygiene," Cramer says.

Brent Deppe is taking me on a tour of the farm supply business, called Key Cooperative, that he helps to manage in Grinnell, Iowa. We step though the back door of one warehouse, and our view of the sky is blocked by a gigantic round storage tank, painted white.

"This is the liquid nitrogen tank," Deppe explains. "It's a million-and-a-half gallon tank."

Nitrogen is the essential ingredient for growing corn and most other crops. Farmers around here spread it on their fields by the truckload.

What if I told you there was a way to use technology to save an estimated $100 billion to $300 billion dollars a year in health care spending in the U.S.? That's the estimated cost incurred because people don't take the medications they're prescribed.

Before a solar project, Mark Holohan usually gives his customers plenty of time to mull over the cost. But lately, installers are scooping up panels so quickly that Holohan has trouble guaranteeing a price for too long.

"We have a sort of panic buying mode in the marketplace right now. Inventories have fallen. Availability has decreased. Prices have risen," Holohan, the solar division manager at Wilson Electric, said over the clatter of machines and workers in the company's warehouse outside Phoenix, Ariz.