Feature video of the month:

Converting Sewer Fat into Green Fuel- BBC News

Lurking in the sewers beneath the streets there are giant blobs of congealed cooking fat known as "fatbergs". Now one company has come up with a clever way of making money out of them. Their efforts may one day change perceptions of fatbergs - turning the lumps of putrid waste into a valuable commodity.

The story of UPM BioVerno Diesel - a journey of innovation from idea to final product

Biofuel from Beer

Biofuels International Conference 2014 - Ghent