How did attitudes toward the institution of slavery change in the late 1700s?

People began to realize that treating other humans as property was not a morally correct thing to do.

Simply put society began to greatly look down upon slavery.

Explanation:

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.