There is a tongue-in-cheek saying in America – attributed to Mark Twain, who lived through the early phase of the California Water Wars – that “whisky is for drinking and water is for fighting over.” It highlights the consequences, even if somewhat apocryphally, as ever-scarcer water resources create a parched world. California is currently reeling under its worst drought in modern times.
Adequate availability of water, food and energy is critical to global security. Water – the sustainer of life and livelihoods – is already the world’s most exploited natural resource. With nature’s capacity for providing renewable freshwater lagging behind humanity’s current rate of utilization, tomorrow’s water is being used to meet today’s need.
Consequently, the resources of shared rivers, aquifers and lakes have become the target of rival appropriation plans. Canada, which is the Saudi Arabia of the freshwater world, is fortunate to be blessed with exceptional water wealth. But more than half of the global population lives in conditions of water distress.
The struggle for water is exacerbating effects on the earth’s ecosystems. Groundwater depletion, for its part, is affecting natural stream flows, groundwater-fed wetlands and lakes, and related ecosystems.
For the complete artilce, please see The Globe and Mail.