1 tree how many pages

It was calculated for newsprint, which is made in a totally different papermaking process from office and printing papers. But it was the best number anyone had, so it became the number everyone used to calculate number of trees saved by recycled paper, or number of trees cut to make virgin paper, no matter what type of paper they were talking about. Paper is made from a mix of types of trees. Some are hardwood, some are softwood.

In addition, some are tall, some old, some wide, some young, some thin. Many of the "trees" used to make paper are just chips and sawdust.

So how can one talk about a "typical tree"? Most paper is made from pine trees , so I went out in the woods and looked at some pines.

Most are about 1 foot in diameter and 60 feet tall. Ignoring taper, that's about 81, cubic inches of wood:. I have a 2x4-foot piece of lumber in the backyard. It weighs about 10 pounds and contains cubic inches of wood. I know that in manufacturing paper, the wood is turned into pulp. The yield is about 50 percent -- about half of the tree is knots, lignin and other stuff that is no good for paper. So that means a pine tree yields about pounds of paper. I have a ream of paper for a photocopier here and it weighs about 5 pounds and contains sheets you often see paper described as "pound stock" or "pound stock" -- that is the weight of sheets of 17" x 22" paper.

Another consideration is that coated paper that is used for high-quality printing and magazines will require more pulp. In fact, one tone of coated magazine paper uses over 15 trees.

For paper used for newspapers, it takes around 12 trees to create one tonne of newspaper. When you consider how many magazines and newspapers are printed and distributed across the world, it is difficult to visualise the number of trees being used. As well as estimating the typical size and type of tree used for paper creation, there are other considerations that can impact the calculations.

These include the quality of paper, with a variety of thicknesses and quality, the amount of wood pulp required to make a tree increases. Other aspects to consider is whether the paper uses recycled material within the pulp and what percentage the recycled material is.

This means that over two million trees are felled every day for global paper consumption, meaning four billion trees are cut every year to serve our paper needs. When you consider this, it makes you question whether that document is really worth printing.

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