What are some of the consequences that could happen if the average global temperature increases by 5 kelvin, as predicted if the carbon dioxides continue to rise at the current rate?

The continued increase in the level of the carbon dioxide (CO2) in the atmosphere has caused the atmosphere to trap more heat and increase the temperature. In this number, it is described that the temperature increased by 5 kelvin. If this continues on then, it will be harder for the living organisms who are not adept to the hotter environment to survive.