Those apps on your phone are expected to earn their developers about $77 billion this year. Some entrepreneurs who are looking to grab a bit of that market were showing off their products in Germany this week. VOA's Kevin Enochs reports.
Imagine the day you board a bus and it starts moving. It obeys all traffic signs and stops at signal lights. All without a driver. That’s the future, happening right now at a business park in Northern California. VOA’s Carolyn Presutti takes us on what’s probably your first ride on a driverless shuttle bus.
As greenhouse gases go, methane is one of the worst. Pound for pound, it is much more damaging to the atmosphere than carbon dioxide. And a good portion of it is emitted by domesticated cattle. Scientists have been working for some time on ways to cut that methane production as a way to help reduce global warming. VOA's Kevin Enochs reports.