In my opinion, I think that Global warming is one of the current name critical Global concerns because, it directly affects our planet and its living creatures (humans, flora and animals). According to Alina Bradford: "Global warming is the gradual heating of Earth's surface, oceans and atmosphere. Human-caused global warming occurs when human activity introduces too much of certain types of gas into the atmosphere".

This means that Global warming is melting glaciers, is making hurricanes more intense and the earth's temperature is increasing and this is affecting the way we live.

Quote: https://www.livescience.com/37003-global-warming.html