Without carbon, all life on earth would not survive.  If all carbon was gone from our  atmosphere temperature would drop as low as -30 C…now thats low!  Carbon effects our world in many ways like, the air, our breathing, plants, vegetation and even more.  Carbon is found in the atmosphere where fossil fuels are burned so, thats where carbon comes from but their is a lot more to go on with.  Ok so                                                                         when the carbon otherwise known as CO2 gives out carbon dioxide gas. It travels through the air and transfers into living organisms and then it transfers out.  When the carbon is inside an organism it forms key molecules like protein and DNA.  The way carbon effects vegetation is that in the flower it increases the photosynthesis with increases plant growth.  Carbon will also effect climate change if their is too much carbon in the air.