Approximately what percentage of costs, of running heavy goods vehicles (HGVs), is accounted for by fuel costs?
The traditional (ie non-environmentally friendly) manufacturing model has been described as:
UNFCCC negotiations led to which agreement in 2015, on the subject of limiting the extent of global warming? Countries agreed, in those discussions, to limit their emissions by 2030.
Complete this phrase. 'The use of the...'
Which organisation was established in 1992 as a forum for international action on climate change?