Final answer:
Tropical cyclone intensity is expected to increase with increasing global mean temperatures due to the warming of the earth's surface and oceans. Warmer temperatures provide more energy for tropical cyclones to develop and intensify, and increased evaporation leads to heavier rainfall.
Step-by-step explanation:
Tropical cyclone intensity is expected to increase with increasing global mean temperatures. The warming of the earth's surface and oceans due to global warming provides more energy for tropical cyclones to develop and intensify. Warmer temperatures also lead to increased evaporation, which results in more moisture in the atmosphere and can contribute to heavier rainfall during tropical cyclones.