Yes, Man has destructed with much cruelty and it looks like being endless whatever efforts and conferences done
I think the piece can make use of some full-stops to close the stanzas.

Ps. Dream....2nd S last line ( dreams?)

you have chronic cliche-itis, Alidzain. My only two pieces of advice are
1. Read a lot of really good poetry so you can learn the difference between original expression and cliche
2. Grow some testicles and apportion blame wit insight, ideology and vitriol so that your poetry might actually make people think about why these atrocities are committed and think how to stop them.

it will help us help you.
Who are your Favourite poets?

I must say I like your revisions and what you add to make this a more lively descriptive piece.

I have few thoughts though if you don't mind.

[The]Old willow is sad...... ( to give the tree more specification, maybe?]
Her crown of branches raised high, [raises... to keep the same tense]
barren of green leaves.

Her thick, buttress roots
spread across the weeping ground [,]
where its breath, halted [.]

The forest is ruined,
for the sake of Man's dream called
Civilisation. [civilization]

They know not the truth! [?!]
The trees are Natures' temples
where beasts seek shelter [.] I like this stanza very much

Their roots braced the earth, [brace]
joining a sea of grasses,
offering their strength [.]

When Man slaughtered them, [slaughter]
rendering the beasts homeless, [he renders]
the soil lose its faith [.]

A tragic end for
long years of preserved beauty,
unappreciated [.]

Man built their city,
the earth burdened by weight load
from their tall buildings [.]

Then their recklessness
leads to many pollution,
threatening the world [.]

The poor old willow
can hear her agonized screams [ does "her" here refers to the willow itself? does she hear her own screams ?]
as time passes by.

Here she stands alone,
the last living memory
of nature's beauty [.] another stanza I like a lot

[The]Old willow is sad.
The gentle wind understands
but Man is still blind. [.]

Again, as I said I like this piece very much and all I added are minors, but Wesley always taught me that I must befriend the punctuation marks, so when I or someone discard them I feel sad :)
And ah, I must say I have learned some few words too. :) so thank you.

Please take what you like and leave what you don't. It is at the end yours

Thanks for sharing sir.

Grow some testicles....
as Jess suggests

I have big ones now

I grew big...long and taller in stature... by Jess's kicks it did matter

'I dissolved my cancerous ego
and am free about the INTERNET to go
write poetry on humanity let willows weep
take it or leave it ur wish

OH U SAID OLD FOREST
I THOUGHT THE WILLOW
WAS A WOODOW

TC UR POETRY IS lovely
all about trees

Now lets get the nice bits over with, I think that the whole theme is fine and covers a load of feelings we have about nature and our integration with it.
Jess has picked up the odd cliché, well I would like to see these pointed out, but he is right about the harsh reality we should bring in apportioning blame if we are going to write on things that are someone's fault.
Now I am going into the realm of Forests.
I am not sure about this Willow tree, the willow is in our country here found near streams and wet places, it has been used by man for ever to make baskets and other holding vessels as it can be woven to form many things, we have three laundry baskets here made from Willow, it was used a long time ago as fence posts along river banks to stop cattle going into the rivers but as the posts mostly took root as the Willow will do a lot of rivers here are lined with those trees all spaced at regular intervals.
There are places it is planted near water that they harvest each year for making baskets and things, but the willow is seldom found in woods or forests.
Not sure which tree you can use but I guess a hard wood one that grows tall in the forests all over the world.
Come back to me on the choice of trees as it is interesting as to what may happen in other countries.
Yours Ian.T
PS:- Asprin the medicine comes from the bark of the willow tree and cricket bats and hockey sticks use are made from their wood, a supple wood that has strength..