How green is space travel?

The images beamed back to Earth of the first civilian spacewalk have prompted a very pertinent question from one Inside Science listener:

What effect is space travel having on our climate?

We're used to delving into the carbon footprint of Earth-bound travel – so this week we’re going to explore the impact of the rapidly growing space industry on our climate.

How does a rocket launch compare to a flight taking off? Do we even know the true cost yet – and if it’s significant, what might the solution be?

Also on the programme, a personal perspective from a remote island on worrying seabird declines, the results of a project to refreeze Arctic sea ice, and why new evidence unearthed about the Falkland Islands suggests it may once have looked very different...

Presenter: Vic Gill Producers: Ella Hubber & Gerry Holt Editor: Martin Smith Production Co-ordinator: Andrew Rhys Lewis Studio Manager: Rhys Morris

BBC Inside Science is produced in partnership with the Open University.

If you want to test your climate change knowledge, head to bbc.co.uk - search for BBC Inside Science and follow the links to the Open University.