These temperature changes on the past 120 years Carbon gases are required for the presence of human life on earth. However, global warming is happening due to over-emittance of these gases
If all the ice covering Antarctica, Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet). The ocean would cover all the coastal cities. And land area would shrink significantly.
The heat levels - All reagons of the world are effected but the southwest is the most effected by climate change, it's causing more wild fires and droughts
The temperature of different places in a city-Air conditioning, for example, can raise temperatures by more than 1°C and being closer to other houses can make it more polluted.
There is more carbon dioxide in the atmosphere today than at any point in the last 800,000 years. Since 1870, global sea levels have risen by about 8 inches.
This warming signal is also found in ocean temperatures, soil temperatures, melting glaciers and melting polar ice caps. It has been linked to widespread impacts on ecosystems around the planet.