The causes of climate change can be divided into two categories, human and natural causes.
It is now a global concern that the climatic changes occurring today have been speeded up because of man's activities.Climate Change Causes - Resource Centre Home
The natural variability and the climate fluctuations of the climate system have always been part of the Earth’s history however there have been changes in concentrations of greenhouse gases in the atmosphere growing at an unprecedented rate and magnitude. The United Nations, governments and many top scientists around the world believe that we must act now to stabilise and arrest further changes.
To understand climate change fully, the causes of climate change must be first identified. Scientists divide the causes into two categories, natural and human causes.