Comment Deserts and Oceans (Score 1) 63
Basically if most of the earths water is locked up in the poles, this would cause arid regions to form.
Sadly this theory is extremely wrong because most of our surface water is in the oceans and despite water being locked up in the poles some of the driest places on the planet are Antarctica's Dry Valleys, right next to the Antarctic ice sheet just as on the Arabian peninsular and elsewhere there are deserts adjacent to oceans. Whether a place is arid is determined by the local climate which is dependent on a host of factors such as prevailing wind direction, local topology etc. not the amount of polar ice - even when that location is right next to that polar ice!