Global Warming and Climate Change} Another question?

If we all agree, (like that will ever happen!) that all known life on this planet, needs three things to exist, water, energy, (mainly from the sun), and carbon (for most life on this planet, that would be in the form of carbon dioxide). And we can all agree that whatever your belief of how the planet came to be, really does not matter, because we are here now, with all of the problems that we have.  Some will say that perhaps the test we now face going forward, is why we are here! Then the next question after how life started, would be. Are we running out, of one of the three requirements of life? I would have to say that right now, almost everyone would say a resounding NO! (that would be for those who even think about such things.) The Sun seems to be only, middle-aged, the water on the planet, while could be cleaner, still cover most of the planet, which leaves carbon dioxide. And mankind has been increasing those levels by the use of fossil fuels, so much so, that problems have started to be apparent from many different directions. Does this mean that this question's answer, is no?                                                               My answer to this question is absolutely YES! It is not how much carbon dioxide is in the atmosphere today, compared to 100 years ago. It's how much carbon dioxide, does the planet hold in reserve. Scientists have already, measured how much carbon has been sequestered out of the carbon cycle at 65 million gigatonnes to 100 million gigatonnes just in limestone production alone. (this range of 65 to 100 million Gt/c, is considered their best guess with quite a bit of room for error.) The next estimate is how much carbon dioxide is left as available, for the continuation of life on this planet. This estimate is not in billions of Gt/c or even millions of Gt/c but is only around 50,000 Gt/c left. Then we find that scientists have measured how much carbon is still being sequestrated, on average each and every year. That amount is estimated at 10 Gt/c per year. And finally, scientists have estimated that the planet returns around 3 Gt/c per year, mainly by volcanoes! Math comes in handy here, I think you can figure out what comes next. Do me a favor, and give me some sign of how these papers are being received.  daniel.kadavy212@gmail.com  or by phone at 402-890-7946  Thank you, Dan. P.S. ok people want me to do the math, 10 Gt/c minus 3Gt/c = 7Gt/c divided into 50,000 = 7142 years but in reality much much less! How much less is only a guess for C3 plants die when carbon dioxide in the atmosphere approaches around 150 parts per million in the atmosphere, and glaciation starts when the carbon dioxide in the atmosphere reaches between 180 and 200 parts per million in the atmosphere and without mankind on the planet, it would have started around 2,000 years ago, And it takes between 60,000 and 100,000 years for enough carbon dioxide to be released from the lowering oceans, and since there would no longer be enough carbon dioxide in the oceans for this to happen, iceberg planet until the end of time ( unless with the new ice miles deep over where plates of this great planet collide, would cause trapped limestone to vaporize in such amounts that it would replace carbon dioxide in the atmosphere that hasn't been seen for 100's of million years!