(TrendHunter.com) It's commonplace for tankers to transport oil, gas and coal around the world so Japan-based startup PowerX is imagining the near-future when these vessels could be instead transporting clean... (TrendHunter.com) It's commonplace for tankers to transport oil, gas and coal around the world so Japan-based startup PowerX is imagining the near-future when these vessels could be instead transporting clean...