Eco balloons firm develops greener alternative
- 8 years ago
Some human activities are more environmentally friendly than others, including sport.
That's why one company in Spain has come up with a design it says makes hot air ballooning much greener.
Al Jazeera's Tarek Bazley reports from Barcelona.
That's why one company in Spain has come up with a design it says makes hot air ballooning much greener.
Al Jazeera's Tarek Bazley reports from Barcelona.