As the demand for sustainable energy rises, see how the wind industry is responding by building bigger and more powerful turbine blades. This video is available for download as a Windows Media file - just click the link to the right. And we’d really appreciate your feedback in the comment box below. Thanks!

What’s it like to work for the World’s largest wind turbine manufacturer, Vestas? Find out from some young graduate engineers. What motivates them and what does their working day involve. This video is available as a Windows Media download - just click the link to the right. And we’d also really appreciate your feedback via the comment box below. Thanks!

Dependance on fossil fuels from abroad poses the problem of energy security, as well as adding to climate change. What are the alternatives? As yet, the only commercially viable sustainable source of energy is wind. This video is available as a downloadable Windows media file - just click the link to the right. And we’d really appreciate your feedback via the comment box below. Thanks!

Could electric cars powered by wind turbines offer part of the solution to tackling climate change? Rob Sauven from Vestas Wind Systems shows how the ‘Intelligent Grid’ allows cars to run even when the wind is not blowing and how they can even be used as storage devices. This video is available for download via the link to the right. We’d also really appreciate your feedback in the comment box below. Thanks!

Ben Goldacre, Guardian columnist and author of Bad Science, explores homeopathy and the placebo effect. Video available as a downloadable Quicktime movie using the link to the right. As always, your feedback and suggestions are welcome.