Buying water is a sign of the times

The International Crane Foundation has bought three years of water in Texas in order to ensure Whooping Cranes (and Sandhills) can over-winter in about half a meter of water on an area roughly half a kilometer square. A drought is ravaging the cranes’ traditional area. There’s no mention of the price or cost; it could be that this is a circuitous way for the government to chip in without being seen to be funding such an activity. My heart supports this initiative but my brain wonders: how can we possibly duplicate this across all the crane species suffering from climate change?