From a legacy of almost no experience of charging for road use in the UK, except for a small number of tolled estuarial and river crossings and some innovative flirtations with congestion charging trials, such as the Cambridge congestion charging scheme in the mid-1990s, in the new millennia the...

Algae are efficient biocatalysts for both capture and conversion of carbon dioxide in the environment. In earlier work, we have optimized the ability of Chlorella vulgaris to rapidly capture CO2 from man-made emission sources by varying environmental growth conditions and bioreactor design. Here...