Warming to what

The other day I saw an article about Warming. The thing about it was that during the times of the dynasoars the Earth was much warmer. it seems like animals and also humans are getting bigger. There are basket ball players that are over 7 feet plus tall and not just skin and bones. I was talking to someone the other days that had lived on a farm in Kansas and he said that Trap door spiders were 3 or 4 inches acrosse. Per the article stated unless I misread it that as the climate gets warmer and warmer that it will bring the dynasoars back. I read where they are talking about producing Mammoths- huge elephants. The question is - Will the climate warming like it is -will this be the demise of the human race. Look what nature is doing to us now- the huge tsumi in s Asia killed what was 300 thousand people. I guess with the quanity of people now on earth - we could lose a couple of Billion out of the 6 or 7 bullion people and stiall survive.I believe I read where the Saber Tooth tigers has come back a couple of times. With the worrsening of the huricanes, etc things could get real bad for the foolish human race that does not know or care to learn how to live in peace with one and another. I guess we will pay for our lack will to do what is right.Enough of my rambling thoughts.