Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.

A. However, when areas in Leh began to experience water shortages, life didn’t grind to a halt.
B. Ladakh is a cold desert with a low average annual rainfall.
C. Thus, glaciers have been the main source of water for the people.
D. This was because Chewang Norphel, a retired civil engineer came up with the idea of artificial glaciers.