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How many trees are there on earth?

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Really, Trees, both leafy and otherwise, reflect sunshine in very particular patterns, making it possible for satellites to map and computers to count strips of land where trees are. Biologists can then sample those places - forests, suburbs, city parks, even city streets - assume a tree density, multiply by acre or hectare, and calculate that. In 2005, there were 400,246,300,201 (more or less) trees on our globe. (That's over 400 billion, for those of you who have trouble working through the commas.) ***EDIT*** - Strange, 400 billion trees only averages out to 60 trees to every 1 human being? Most scientist agree that the data needed to complete the complex mathematics required to accurately approximate the number of trees on the planet Earth simply does not exist. The truth is, we have no idea. Estimates have ranged from anywhere between 1 to 10 trillion trees currently inhabit the surface of the Earth (a considerably noticeable gap can easily be observed between these two figures lol). The number you quoted above (400,246,300,201) was a study funded by an extremely liberal organization which went on to claim (outrageously) that over 50% of the trees on the planet Earth have been harvested/destroyed by human beings. If this were true, the entire human population would have been swept away in an enormous fresh water flood and any remaining survivors would eventually die from starvation, soil degradation/poisoning and/or extreme atmospheric deterioration. I'll let the rest of you decide what you CHOOSE to believe.
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How long has trees been on earth?

The earliest flora that we would recognize and call "trees" were early conifers that evolved during the Middle Permian epoch, about 275 million years ago. There were very larg

Why are trees important to the earth?

Absorb carbon dioxide,produce oxygen, are the habitat of millions of species of animals, keep water tables from rising and causing salinity,stabilize soils to prevent landslid

How many years have trees existed?

About 360 million years. (After the Cambrian period 550 million years ago, or "Cambrian explosion", as it is known, when most animal life began on this planet, plant life bega

Why are trees called the lungs of the earth?

Trees create a balance with animals, as they take in carbon dioxide and release oxygen. In actual fact, though, the oceans could be seen as the lungs of the earth, because ph

Is the earth running out of trees?

it depends on what type of trees. oaks and maples are very common in theUSA. but there are certain types of trees that are becoming extinct for example the red oak tree is now

What will happen if all the trees were removed from the earth?

Well, first off, it's not gonna happen, so don't worry about that.   Trees, or more accurately, the photosynthesis they carry out, convert carbon dioxide to oxygen. It migh

How many trees are planted a year?

Hundreds of nurseries in the United States grow over 1.5 billion trees annually, which reforests nearly three million acres. This number represents over six trees planted for

How long have trees been on earth?

The first plants to develop a woody core and begin looking like  tress were ferns - as early as the Middle Devonian (around 388  million years ago) one species, Wattieza, ha