Climate change is a long-term shift in weather condition identified by changes in temperature, precipitation, wind and other indicators. Climate change can involve both changes in average conditions and changes in variability, including for examples extreme events. The earth’s climate is naturally variable in all time scale, however, its long term state and average temperature are regulated by the balance between incoming and outgoing energy which determines the earth’s energy balance.
Any factor that causes a sustainable change to the amount of incoming or the amount of outgoing energy can lead to climate change`s these factors are external to the climate system, they are referred to as climate forces, invoking the idea that they force or push the climate towards a new long term state either warmer or cooler depending on the cause of change. Since industrial revolution, climate change has brought "key risks" that endangered lives and health worldwide, including storm surges and coastal flooding worsened by rising sea levels; infrastructure destruction and the disruption of power networks, by extreme weather and the depletion of crop production due to droughts and flood.