Green bus 'exhaust water' a breakthrough

Drinking "exhaust water "from a city bus wasn't how I imagined starting my week. Yet here I am, in Zhangjiagang, Suzhou, Jiangsu province, holding a small paper cup filled with liquid that just moments ago came out of a bus tailpipe.

My brain is sounding all the alarms it's evolved over millennia — Don't drink this. It's exhaust water. But the moment I take a tentative sip, the only feeling is that it tastes just like water — clean and warm.

This surreal moment — a reporter drinking bus "exhaust water" — isn't part of some science museum exhibit or viral TikTok challenge. The water is from a hydrogen-powered bus running every day in Zhangjiagang.