Answer:
The most appropriate answer would be E. global warming.
The long-term increase in the Earth's average temperature is termed as global warming. It is mainly caused due to the rise in the concentration of greenhouse gases.
The increasing temperature has adverse effects on the earth.
One of the consequences of global warming is the change in the climate.
For example, it has resulted in the melting of glaciers, increases in sea levels, change in precipitation patterns, extreme weather events, rising temperatures et cetera.