(TrendHunter.com) Still in its prototyping phases, the carbon-neutral concrete by British company Seratech—founded by Ph.D. students Sam Draper and Barney Shanks—is making a splash in the outside world. The... (TrendHunter.com) Still in its prototyping phases, the carbon-neutral concrete by British company Seratech—founded by Ph.D. students Sam Draper and Barney Shanks—is making a splash in the outside world. The...