Answer:
By conducting to plant more trees and reducing the use of gas that emitting Co2 that cause to rise the temperature.
By the mid 2030's. You can find it on their website.
There are only three groups and these groups that conquered North Africa at one time or the other are the Romans, Muslim Arabs, and the Phoenicians. These groups have developed colonies in North Africa. One example is the Phoenicians who built colonies to the Atlantic from the Tripoli. Also, during the conquest of the Muslim Arabs, this started the spread of Islam all over the country.
Of these choices i'd say that the third option or "domestic fuels are always cheaper to acquire and renewable". I hope this helps :)
