Airbus unveiled three new hydrogen plane concepts

The aviation giant revealed new images of its concepts set to soar in the future.

Airbus plane concept.

Airbus has dreamed up a new line of eco-friendly planes called the "ZEROe.' The concepts are all powered by hydrogen, and all could start ferrying passengers by 2035 according to the company.

That could mean that, instead of greenhouse gases, the planes emit water vapor...