How can we prevent losing our green cover-trees

Most of the time we complain about losing green cover, cutting down of trees , woods etc. But have we ever thought why this green cover is being vanished by humans so fast. I must say that this is demand of modern world. Directly or indirectly we are consuming it, in many ways.
Now let us see that if the woods are being cut , where it goes majorly---
1) They are cut to make place for the new buildings (may be office or apartment or mall) to be build up, so that the increasing population may get shelter or job or their daily necessity things.

2) They are cut to make furniture , it is one of our need.

3) Many trees beside the roads are cut to broaden the road , to accommodate the increasing number of vehicles on the road.

4) Trees are cut for making papers and many other similar kind of products.

These consumption areas are not new, people have been cutting wood for long time for the same requirement but we are losing more trees now than before. The reason for losing more greenery now is---
1) Increasing population-- If the population will increase , demands/needs will also increase. For satisfying these needs more resources(trees) will be required.

2) Consumerism-- Few things we do not buy just because we need them but we buy them to build our status symbol or to satisfy the greed within us.A person may have more than one flat, more than one car(or any other vehicle) though at a time we can use only one of them .This tendency of possessing more things than we actually need may directly or indirectly relate to cutting of more trees (to produce more, more resources are required).

3) Plantation-- There is a huge difference between the ratio of cutting down and plantation of trees.
We can try to equalize this ratio by planting more trees around. If all of us plant at least one plant/tree on all the big occasions of our life(Birthday, festival, anniversary etc) , then we could achieve our goal.
And, when we are constructing our house or apartment then we can leave at least 1/3 or 1/4 of total area just for trees or kitchen garden. More open area , more trees/plants can be planted.

4) Use paper efficiently-- We can wisely use paper products to save our trees.
We should make our habit to carry handkerchief(cloth) and restrain use of paper towels.
If we use paper for writing we should check that it is fully utilized before turning to other page.

If we are not able to save the trees from cutting , through this way we can prevent the number of trees really falling down.