1. the carbon in fossil fuels was in the atmosphere long
ago. why does burning these fuels and releasing the
carbon back into the atmosphere create a problem
today?

Politically correct When we burn fossil fuels, we release carbon into the atmosphere as carbon dioxide too much excess CO2 not absorbed by plants leads to global warming.

Explanation:

Thats the politically correct answer, however, anyone with a brain can look back at the earth's temperature and see that the earth is actually COOLING not warming. If you don't believe me look it up for yourself.

the minoan civilization flourished in the middle bronze age on the island of crete located in the eastern mediterranean from c. 2000 bce until c. 1500 bce. with their unique art and architecture, and the spread of their ideas through contact with other cultures across the aegean, the minoans made a significant contribution to the development of western european civilization as it is known today. labyrinth-like palace complexes, vivid frescoes depicting scenes such as bull-leaping and processions, fine gold jewelry, elegant stone vases, and pottery with vibrant decorations of marine life are all particular features of minoan crete.  

so basically their unique way of ding arts, as well as architecture.