Dramatic population control (global 2 child policy - where there are 0 benefits granted after the 2nd child and taxes increase the more kids after 2 you have), tax relief on environmental R&D functions, human impact restriction zones on land, sea and air areas of outstanding natural beauty. Higher tax rate for non-renewable fuels. Limitations on inefficient buildings (i.e. if its really bad, its got to go), make those capable who are claiming benefits have to commit at least 10 hours a day picking up waste in high traffic areas, follow the european method of paying for your waste and getting money back for returning it to the shops and chuck in some education too.