Are we going to run out of raw material to sustain life on earth?

Does it sound crazy?
When you talk about Reincarnation. People ask this question, how does the population of the world increase? If each person has a soul and the soul is recycled , the number of people alive should be same, isnt it? How are all the extra people being born?
I said they are being born like waves out of a sea, a sea has waves but it has enough raw material to make infinitely more number of waves than those at the surface, sometimes less waves sometimes more waves.

Then I thought why go for such a vague example? Just like earth actually - how is earth making more and more people ? Its the same earth but there are so many more people than there were before.  Earth does not get any more matter than it already has ( Earth gets energy from the Sun, but  Sun also does not get any more energy than it already has ) Its the same amount of raw material all along.
Shocking realisation - Earth is finite!!

What we consumed as animals or as primitive men was minuscule, everything is recycled by earth by decay and death, so the raw material for making life/making more humans/animals looked  like it is infinite so far but  Now??
Look at the materials we have now and how much! look at the garbage dumps. We are locking up the raw material into things which cannot be used to make life for a really really long time. Is our uncontrolled materialism and consumption going to snuff us out? Are we threatening the capacity of earth to make life?  Are the signs like global warming and major disruption of climate a sign of this?
We cut away forests, killed and ate animals to extinction but we were so few it didnt matter ( or may be it did even then, 10,000 years ago lot of animals went extinct, it may have been because of humans ) but Today? We are consuming like crazy - Plastics, Chemicals which were never present on earth before. Just look at the western world, how we buy, how we consume. It is giving me chills.
I saw a skip full of thrown away furniture yesterday and it gave me the chills. Is this the biggest evil which we are refusing to see?