Many around the world have mocked the inability of US government officials to cooperate and end the government shutdown. Those who aren't laughing include people from around the world whose visits to US national parks have been ruined.
Antarctica has long been considered a last redoubt of cold in a warming globe. But new science suggests that a key part is warming up fast. Sam Eaton reports the finding could cause scientists to rethink their sea level projections for later this century.
The Himalayan Kingdom of Bhutan wants to boost tourism while keeping the number of visitors under control. So it requires tourists to spend a minimum of $200 per day. And as The World's Mary Kay Magistad reports from Bhutan, the amount goes up next year.
For today's Geo Quiz, we head to the frozen north. We have heard a lot about the problem of melting ice as climate change warms up the Arctic. But scientists are also worried about something else that is melting up there — permafrost.