In chronic liver disease, cells are lost, reducing the effectiveness of the liver and leading to ill health.

BBC: Excessive drinking can lead to cirrhosis

However, by this time the tide was turning and many leading educators were questioning the effectiveness of mixed ability teaching.

BBC: Setting, streaming - how schools teach

Bernd Kosch, green IT advisor, Fujitsu Technology Solutions: Among the various green benefits of the cloud computing paradigm, there is one which is exceptionally striking: cloud computing enables small and medium enterprises (SMEs) to take full advantage of very large scale data centre technology, including the latest, most energy-efficient hardware provided in the shortest refresh cycles and leading facility-related infrastructure with advanced power utilisation effectiveness.

FORBES: Cloud Computing's Hidden 'Green' Benefits