Answer:
Increased atmospheric carbon dioxide will cause increased ocean surface temperatures.
Explanation:
Greenhouse gases of which CO2 is a typical example are known to cause a gradual and steady increase in the surface temperature of the earth by trapping infrared rays close to the surface of the earth.
As the surface temperature of the earth rises, the surface temperature of the oceans rises also leading to the tendency towards hurricanes.
Hurricanes are violent storms which are known to form near the equator over warm ocean waters.
Hence, increased atmospheric carbon dioxide will cause increased ocean surface temperature which in turn increases the chances of the occurrence of hurricanes.
