Because ozone is impacted by changes in climatic circumstances and changes in atmospheric composition that might arise from climate change, changes in the Earth's climate could have an impact on how the ozone layer behaves. The main concern is that, as a result of climate change, the stratosphere will most likely cool, prolonging the circumstances that promote chlorine-caused ozone depletion in the lower stratosphere, particularly in polar regions. At this time, the amplitude and extent of such cooling, as well as the time it will take for the ozone layer to recover, must yet be determined. The Bees are symbol of the results of if there no tree in world , there is only the end of human-life.