renewable energy travel
Science Eyes Liquid Nitrogen As Alternative To Fuel For Sustainable Air Travel
For the future of the environment and driving down future costs of air travel, scientists look into liquid nitrogen as the best replacement for fossil fuel -- and in fact, decades of liquid nitrogen research and tests that prove it is viable for the task.
Five Ways Future Inventions Will Make Travel Cheaper
Cheap travel means doing away with fuel and human error -- something these five inventions and concepts could introduce in the next few years.
