The measurable benefit of trees

Among the measurable benefits of trees cited:

• Asthma rates for children fall 25% for every extra 350 trees per sq km.
  • Money for a new Heathrow runway could provide 22m street trees.
  • 1,000 new parks could help avoid 74,000 tonnes of carbon a year.
  • For every 5% of tree cover added, water run-off is reduced 2%.
  • A treeless street is 5.5C (10F) warmer than a tree-lined one in hot summers.
  • Property in treeless streets is worth 18% less than buildings in roads that have trees.
  

(Source: Guardian.co.uk) | Cost: | For further info...