This week we take a look at teaching blockchain, the future of commuting and the latest anti-littering campaigns. This and more in this week's Five Things in Five Minutes.
1. The ABCs of cryptocurrency
Sesame Street is moving with the times, teaching children the basics of blockchain. Sesame Workshop will include the building blocks of cryptocurrency, giving future generations the skills to get ahead in a fintech economy.
2. Morning brew to come with a warning
In a plea to make coffee lovers more environmentally conscious, an online petition has reached 23,000 signatures calling graphic warnings to appear on coffee cups.
3. uberAIR searching for launch city
Aiming to introduce urban aerial ridesharing by 2023, Uber is searching for three 'launch cities' to be the first to offer uberAIR flights.
5. Samurai trash warriors
Litterers beware, katana-wielding samurai are prowling the streets of Tokyo, collecting rubbish with their razor-sharp weapons.