2) The urban island effect partially results from paving
widespread areas of soil and vegetation with cement and asphalt. 
During the day, urbanized areas tend to be hotter than the
surrounding countryside. This is also true for the entire summer
season.  

(a) Explain why such urbanized areas tend to be hotter, using New
Orleans as an example. Use terms like "specific heat capacity,"
"sensible heat," and "latent heat."

(c) Also, speculate as to why cities tend to get more frequent
and violent thunderstorms than rural areas.[Hint: think about
sensible heat and the movement of air masses and water vapor.]