A proposed method to capture carbon dioxide and convert it to industrially useful chemicals gets IIT Bombay entry to the X-prize carbon removal grand prize competition.
Anybody who migrates to smart phones soon begins to question the smartness of it all. While batteries lasted a fortnight or so in vanilla mobile phones, a smartphone typically empties the battery in less than a day. Carrying those bulky rechargers is a remedy worse than malady. How do you power your smart phone for days when you are nowhere near a power source?