12. Take the 4Liter Challenge
Change the way you think about water - take The 4Liter Challenge.
Sign up at 4liters.org and create a profile. Then live on just four liters of water for a few days and share the experience online!
- The death toll from Italy's earthquake rose to 159 people amid efforts to dig out residents still trapped in rubble.
- Donald Trump's campaign paid a Barnes & Noble $55,055 to buy more than 3,500 hardcover copies of his book.
- Scientists found a planet "on our doorstep" that may be habitable. We could send robots to explore it in a century or so 🌍🌠