British Columbia gets plenty of rain -- but local developers are taking water conservation seriously ahead of the 2010 Winter Olympics. In a Vancouver suburb, Richmond's speed-skating facility uses water runoff from its 6.5-acre roof for toilets and park irrigation, while Vancouver's Convention Center uses treated sea water and waste water to irrigate a roof garden. Officials say the plans are intended as preemptive action to help ensure Canada never suffers a California-style water crisis.

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