Question: People in the Sahara may witness Ramadaan during the summer season. It becomes too difficult or even impossible for them to observe Sawm (Fast). However, this will last for many years so how can those people observe Sawm? What should the elderly- who can neither observe Sawm nor feed needy people do?
Answer: When Ramadaan comes, it becomes obligatory upon every healthy, resident, and Mukallaf (person meeting the conditions to be held legally accountable for their actions) Muslim to observe Sawm. Allaah (Exalted be He) states... read more here.