Quick Facts About Trees

Did you know that trees are the longest living organisms on earth? How do trees help purify the air that we breath? Where is the world’s tallest tree located? This section provides a summary of some of the most interesting facts about trees.

General Facts About Trees

  • Trees keep our air supply fresh by absorbing carbon dioxide and producing oxygen.
  • In one year, an acre of trees can absorb as much carbon as is produced by a car driven up to 8700 miles.
  • Trees provide shade and shelter, reducing yearly heating and cooling costs by 2.1 billion dollars.
  • Trees lower air temperature by evaporating water in their leaves.
  • The average tree in metropolitan area survives only about 8 years!
  • A tree does not reach its most productive stage of carbon storage for about 10 years.
  • Trees cut down noise pollution by acting as sound barriers.
  • Tree roots stabilize the soil and prevent erosion.
  • Trees improve water quality by slowing and filtering rain water as well as protecting aquifers and watersheds.
  • Trees provide protection from downward fall of rain, sleet, and hail as well as reduce storm run-off and the possibility of flooding,
  • Trees provide food and shelter for wildlife.
  • Trees located along streets act as a glare and reflection control.
  • The death of one 70-year old tree would return over three tons of carbon to the atmosphere.

Tree Biology

  • Trees are the longest living organisms on earth.
  • Trees and other plants make their food through a process called photosynthesis.
  • The inside of a tree is made of phloem, cambium, and xylem.
  • The xylem of a tree carries water from the roots to the leaves.

Trees and the Environment

  • Trees renew our air supply by absorbing carbon dioxide and producing oxygen.
  • The amount of oxygen produced by an acre of trees per year equals the amount consumed by 18 people annually. One tree produces nearly 260 pounds of oxygen each year.
  • One acre of trees removes up to 2.6 tons of carbon dioxide each year.
  • Shade trees can make buildings up to 20 degrees cooler in the summer.
  • Trees lower air temperature by evaporating water in their leaves.
  • Tree roots stabilize soil and prevent erosion.
  • Trees improve water quality by slowing and filtering rain water, as well as protecting aquifers and watersheds.
  • The cottonwood tree seed is the seed that stays in flight the longest. The tiny seed is surrounded by ultra-light, white fluff hairs that can carry it on the air for several days.

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