Gesamtlänge aller Episoden: 4 days 17 hours 30 minutes
Billions of people don't have access to high-speed internet. Many live in remote regions without cable or fiber-optic broadband. But laser beams can reach anywhere. The German startup Mynaric is sending information round the world by laser beam.
It's been more than a century since the first lightbulbs lit up our homes. Today we can use our smartphones to regulate LEDs all over the house: to make them brighter, more colorful, to automatically switch on or off. Light has become smart.
They can't read or write, but they're learning to become entrepreneurs. After undergoing training at Barefoot College in India, 60 women from all over the world will return to their villages, with the skills to install and repair solar systems.
Many consider vegetarians the new superheroes. They eat no meat and so have a reduced carbon footprint. But is that really true? An avocado can actually do more damage to the environment than a steak. Environmental vegetarianism – fact or fiction?
Meat is in many cases an indicator of prosperity. That's because consumers generally choose which meat they want, how much they eat and where and how it's produced - a cheap product from the supermarket or higher-priced meat from ethical farming.
A whole chicken may cost less than three euros at a German supermarket, while an ethically farmed equivalent could set you back ten euros or more. So what's the difference? How do farmers set their profit margins and what pressure are they under?
The whole debate over conventional farming is driving increased research into lab-grown meat. Many startups see it as a business opportunity. But the challenges they face are huge.
Cheap EU chicken exports continue to decimate Africa's domestic industry. We meet one of the few poultry farmers left in Ghana.
It seems like a paradox: for many meat is out, but Christmas without a traditional Christmas dinner is unthinkable. And so the trade in meat alternatives is booming. So what's it all about?
The guy on the bus does it, the woman at the next-door desk does it too. But talking to yourself isn't necessarily a sign of madness. Give yourself a pep talk. It works.