More water usage restrictions may be introduced as Wimbleball reservoir drops to just 18% full.
Related stories
Largest 2D map of the universe helps scientists discover new gravitational lenses
Prepare for the unexpected: The coming super El Niño and NZ's ocean weather
Olowalu reef off Maui provides glimpse into two centuries of environmental changes
Pottery styles reveal contrasting paths to social complexity in Neolithic Europe
Study aims to reduce teacher burnout and turnover
High-resolution global atmospheric model erases 'popcornlike' rain