bbC Source

In the south-western corner of the United States, drought has meant that Lake Mead, which supplies the Las Vegas valley, is shrinking fast.
The Colorado River, a critical source of drinking water for southern California and Arizona, and the feeder of the Hoover Dam, has seen its flow cut by half in the past few years.
Now the US has turned its attention to its northerly neighbour Canada in hoping to find a solution to its water shortage, but it is not looking easy.
Lake Mead in the USA is running dry
The former US ambassador to Canada, Paul Cellucci, says it makes no sense for Canada to refuse to exploit one more of its natural resources.
Candians be warned the US isn't after your beer but your water. We might start hearing about chemical weapons factories, unrianium enrichment, WMD and other such stuff in the next couple of years is you continue to refuse to let the US have access to your water reserves.