How to make cheaper second-gen biofuel

Producing second-generation biofuel from dead plant tissue is environmetally friendly - but it is also expensive because the process as used today needs expensive enzymes, and large companies dominate this market.

In Thailand, a deep green vision for saving an historic city


The city of Ayutthaya, Thailand, was founded when King U Thong ran there to escape a smallpox outbreak in Lop Buri way back in 1350 and proclaimed it the capital of his kingdom. 



Tablet prototype needs no external power supply

Indian school-children are testing a solar-powered tablet PC being developed by Rice University and Singapore's Nanyang Technological University (NTU).