Question

what is global warming explain in brief​

Answer 1

The heating up of Earth's temperature on the surface since the green house gases like CO2 and methane absorb the sun's radiations.

Answer 2

$\textbf{Hello mate!}$

$\textbf{Global warming :}$

》 A gradual increase in the overall temperature of the earth's atmosphere.

$\textbf{Hope this helps you}$