Every day there are approximately 100,000 flights taking people across the globe, which overall equals an average of 150 billion miles travelled by plane - that's practically equivalent to flying to the Sun and back! When considering an aircraft such as a Boeing 747 uses roughly 4 litres of fuel every second, it becomes clear that the impact on the environment will be substantial.

Now more than ever it is imperative that a greener alternative for commercial and private planes is found, and today we discuss the advancements and potential problems of Zero Emission aircraft with two experts from the Aerospace Technology Institute - Bethany Hall and David Debney. Listen in as they navigate us through this intriguing topic.