Bill Gates and Khosla Ventures step up investment in producer of ultra-efficient diesel engines
A US developer of ultra-efficient engines has revealed plans to accelerate its research and development efforts and expand its product portfolio, after securing $32.5m in new funding. Michigan-based...
City's tourism industry is third largest in the USA, but climate change is driving up its mild temperatures
New research indicates ozone hole is slowly on the mend
BusinessGreen takes a look at the green credentials of the Conservative leadership hopefuls
Free colour-coded menu is changed daily according to air pollution levels at pop-up scheme that aims to raise awareness of problem