Save trees save earth
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Transcript of Save trees save earth
Group Members• Bushra Ameer 2013-PE-08• Alvia Asif 2013-PE-14• Natasha Ashraf 2013-PE-15• Hira Ehsan 2013-PE-26
Significance Of TreesProvide shelterSatisfy our hungerMedical valuesControl environment temperatureClean our environmentGreat DonorsPricelessWork Endlessly
TREES-A saving for HomeownersSave 56% of annual air conditioning costEach large front yard increase about 1% to sale
priceLarge specimen trees can add 10% or more to
property values
TREES-Reduce Air Pollutants100 trees remove 53 tons of CO2 per year 430lbs of pollutants 72lbs of ozone 81lbs of particulates
TREES-Source of OxygenAccording to US department of agriculture
One acre of forest absorbs 6 tons of CO2 and puts out 4 tons of oxygen. This is enough to meet the
annual needs of 18 people.
DeforestationMassive deforestation during last 20 years30% of territory was covered with forests in 1990Only 6% territory is covered with forests nowAverage forest coverage (25-30)%
Paper Consumption25,00,000 trees are used for publishing books850 million trees are cut down for making 50
million tons of paper
Steps To Reduce Paper ConsumptionRecycle paperE-bills instead of printed statementsUse electronic booksUse ceramic pads for writing