reasons why carbon dioxide in the atmosphere increased gradually. In addition to that comes from burning fossil fuel lalaeo. Another major reason is deforestation and the burning of forests to agricultural areas, because the tree has good properties to absorb carbon dioxide, into the atmosphere is not floating. When the forest area reduced Quantity of carbon dioxide in the air, so high up and burning the forest to make Salvage Salvage crops destroyed in land animals become gas of this type increased in the atmosphere