There has been a recent decision to discontinue the availability of TWIG on GLOW by the Scottish Government / Education Scotland from 30th June 2015 due to alleged under-utilisation. There are many clips suitable for use in Geography under the Earth Sciences and Human Geography sections. 

If you would like to see this resource continue to be available [free of charge] you can sign the petition: http://www.ipetitions.com/petition/retain-twig

If you would like to make a more direct case you may email your local authority’s Glow Key Contact, list of emails here: http://connect.glowscotland.org.uk/about/glow-key-contacts/, QIO, STEM/Science Develeopment Officer or Patricia Kemp the Head of Online Services at TWIG (pkemp@twig-world.com).