Project to recycle human waste into food one of eight university-led proposals to receive NASA grant
How will astronauts feed themselves in the months and years it will take to reach Mars and, perhaps one day, the outer reaches of the galaxy? It is one of the biggest challenges facing NASA's research...
Party pledges to invest £4bn in transforming all 35,000 buses operating in England to run on electricity, while expanding local bus services
Supermarket is hoping to set up support scheme for soy farmers in the Cerrado region of Brazil in a bid to protect native vegetation
Hopes are high that Greta Thunberg's arrival in Madrid can deliver some urgency for Paris Agreement talks that have shown slow progress so far
All the winners and highly commended entries from the fifth annual BusinessGreen Technology Awards