The jet stream that circles Earth's north pole travels west to east. But when the jet stream interacts with a Rossby wave, as shown here, the winds can wander far north and south, bringing frigid air to normally mild southern states.
Athletes prepare for years to compete in the Olympics, and then, in a flash, it's all over. For American speed skaters it's been a terrible Olympics, but U.S. men's Alpine skiers are managing to turn around a medals drought.
In the men's super-G competition Bode Miller won the bronze. At 36 years old, he is the oldest person ever to win a medal in Alpine skiing at the Olympics. It makes him one of the most decorated American winter Olympians, winning a total of six medals in three different Olympics.
In the past, you could go to jail for selling marijuana. Now, depending upon where you live, you could end up going to the bank.
Medical marijuana is now legal in 20 states, and legislation is pending in 13 others. It's become a $1.5-billion-a-year industry, and it's expected to triple in just a few years. With legal cannabis one of the world's fastest growing market sectors, investors are seeing green.
This is WEEKEND EDITION from NPR News. I'm Rachel Martin.
The Central African Republic is a country in chaos. Muslim rebels seized power last year and then lost it as Christian militias have fought back. And the war rages on. France and other countries have sent peacekeeping troops to the CAR. And today, Muslims are being evacuated under the protection of those international troops.
NPR's Gregory Warner is in the Central African Republic. He joins us now on the line. Greg, where are you and what are you seeing?
Later this month, Pope Francis will welcome his first appointments to the College of Cardinals. Among the 19 men chosen for elevation are seven from Central and South America, the Caribbean and Africa. This, say observers, reflects the pope's belief that the church must pay more attention to the poor.
One comes from Haiti, a country with a long, troubled history with the Catholic Church.
Bishop Chibly Langlois says he was skeptical when he heard he'd been chosen.