Every trip to Antarctica inspires awe and concern for the fragile frozen continent. But every trip also contributes to the global warming that's eating away at the place. So is it better to visit Antarctica, or stay away?
In France, a restaurant meal is considered something to be experienced under the watchful eye of the chef. So there's no tradition of taking home leftovers. But the French government would like to change that to reduce food waste.
Women and girls in a cluster of small Moroccan villages used to have to walk up to three hours a day to fetch water. Now, the villages get all the water they need from a new system of fog nets in the nearby mountains, and that means a lot more time available for work and school.
The water crisis in Cape Town, South Africa is easing a bit, but the city and many of its businesses and institutions are forging ahead with expensive efforts to increase supply, including private desalination plants.