Botany - Environmental Issues Question with Solution | TestHub

Without the greenhouse effect, the average temperature at surface of Earth would have been a chilly (–18^oC) rather than the present average of 15^oC.

During the past century, the temperature of Earth has increased by 0.6^oC.

El Nino climatic effect is caused to increase in temperature of water in the eastern tropical Pacific ocean. Due to this, there is high air pressure in the western Pacific and low air pressure in the eastern Pacific. The areas close to the warmer areas get severe rainfall while the areas away may have severe drought causing an imbalance in climate.