Answer: Global warming
Step-by-step explanation:
The need of energy can lead to global warming. people now a days are relaying more on the production of energy by burning the fossil fuels like coal, petroleum and other materials.
The need of energy is fulfilled by burning fossil fuels which releases carbon dioxide in the atmosphere which is a gas that causes global warming.
The carbon emission is increasing as the population is increasing, the need for more energy is also increasing.