Global climate change known as certain weather changes that happens in certain times. First thing that comes to mind about global climate change is global warming. Global warming is the ongoing increase in global average temperature and it’s effects on earth’s climate system. The current rise in global average temperature is more rapid than previous changes and human activities are the primary reason of climate changes because of burning fossil feels like coal, oil and gas. fossil fuel use, deforestation and some agricultural and industrial practices increase greenhouse gases notably carbon dioxide and methane. greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. larger amounts of these gases trap more heat in earth’s lower atmosphere, causing global warming. climate change threatens people in terms of lack of food, lack of water and extreme heat conditions etc. So,in short, climate change refers to long-term shifts in temperatures and weather patterns