And I decided to explore this movement by turning trees into artists.

Outbreak species help to renew the forest by killing older trees.

These sorts of trees can be restored, given a concerted campaign and investment in nurseries to produce local varieties.

Over 40 million years ago during the Eocene era, a forest of tall trees flourished on Axel Heiberg island.

Many trees fell down.

Older trees, while growing much slower, still do so faster than other trees.

The trees are green.

These trees are the tallest and one of the most massive tree species on Earth.

Few of the forests are fully mature because of previous overcutting and also because of several violent storms during the 1960s, which snapped or uprooted millions of trees.

Sami hid his car in a grove of trees.

Some of the trees were hundreds of years old.

Trees epitomize stasis.

We love trees.

I was making a very simple sketch in a notebook of tree rings, and I quite quickly made a connection between tree rings and chapters in a book, Paterson says.

Copyright Demotix (12 13 2012)A student from Yogyakarta in Indonesia is adorned with bright green paint as he hands out a tree sapling to road users during a treeplanting campaign.

And these would be the kind of trees that might have been there, and the flowers and the lichens and the mosses, the butterflies, the fish in the stream, the birds in the trees.

Don't cut down those trees.

Trees are planted along the street.

The trees will soon be bare.

I see a man between the trees.

Sami planted trees.

It now pays for nature to stay, as the locals earn their neo traditional living by ranching oxygen traded on the Chicago Climate Exchange (CCX), and through shipping certified timber and organic palm hearts to Chile and Europe.

However, they may be destructive in that when one tree falls, the connections made by the lianas may cause many other trees to fall.

Many tropical tree species have seeds that are dispersed by ants.

Those of temperate regions lose their leaves every autumn as temperatures fall and are dormant in the winter, but those of tropical regions may shed their leaves in response to seasonal or sporadic periods of drought.

Richard Preston on the giant trees

What shapes are the trees?

Wood doesn't grow on trees.

A treeplanting campaign in Indonesia.

Orchards thick with trees ,

And dense gardens ,

and dense tree 'd gardens ,

And enclosed gardens luxuriant .

And gardens , dense with many trees ,

And luscious gardens .

and dense orchards ,

And garden closes of thick foliage

and densely planted gardens ,

the densely tree 'd gardens ,

And gardens of dense shrubbery

thickly planted gardens ,

And thick gardens ,

and burgeoning enclosed gardens

And enclosed Gardens , dense with lofty trees ,

H. Illegal logging