A mature oak tree on a hot summers day can transpire 450 litres of water as oxygen. Plants reduce pollution; plants are the best on earth, catching more than 12 million tons of pollutants released in to atmosphere annually.
A tree in front of a home can affect cooling equivalent to that of 10 room air conditioners running 20 hours a day. Twenty trees offset the pollution effects of one car, driven 60 miles. To help pollution, there should be at least three trees to every person on earth.
Plants generate life-giving oxygen. A person inhales 2,300 times a day, absorbing 35lbs of oxygen. Most of this is produced by growing plants. An 18 hole golf course supplies enough oxygen to meet the needs of 6,000 to 8,000 people.
Plants help us to keep cool. One acre of grass transpires 2,400 gallons of water daily during the summer, thereby producing a cooling effect equivalent to that of a 70 ton air conditioner. A properly-sited shade tree can reduce summer temperatures by as much as 20 per cent.
Plants are invaluable in reducing noise pollution. Trees can cut down noise levels by 75%. A 30 metre strip of trees can absorb 6 – 8 decibels. Trees provide psychological wellbeing. Studies have found that office workers surrounded by plants are happier and more productive that those without.
Another study has proved that gardening burns up more calories than cycling or walking. Each person needs seven trees to offset their carbon footprint. The world’s largest living organism is a tree called ‘General Sherman’ it has enough timber to make 40 five bed roomed timber framed houses
The world’s tallest tree is two thirds the height of Blackpool Tower. The world’s oldest tree is called ‘Methuselah’ and is 4,700 years old. Trees appeared 270 million years ago, Dinosaurs appeared 40 million ago, Dinosaurs extinct 65 million years ago, Trees are still going!