Answer:
Climate change refers to the global changes in the climate, that are caused due to the changes that occur in terms of precipitation, wind pattern, surface temperature, and other climatic factors.
It is caused due to the increasing amount of greenhouse gases such as carbon dioxide, water vapor, methane and chlorofluorocarbon in the atmosphere that depletes the ozone layer. These gases are released from vehicles, industries, and factories. Deforestation also leads to an increasing amount of global surface temperature.
The effects of climate change are the increasing and decreasing amount of sea level, global rise and fall of surface temperature, as a result of which the ecosystem at various places are affected significantly.