How is oxygen 'sucked out' of our waterways?

A million fish have died in the Murray Darling basin, as oxygen levels plummet due to major algal blooms. Experts have warned we could see more mass deaths this week.

What causes algal blooms, and how we can stop them?

Outbreaks of algae have killed up to a million fish in the Murray Darling Basin over the last two weeks. The phenomena of "algae blooms", when the population of algae in a river rapidly grows and dies, can be devastating ...

Why Tehran is sinking dangerously

Iran has a water problem. The reserves in many groundwater basins there have been severely depleted. For the last 40 years, the country has invested a lot in the agricultural sector, and has been striving to be independent ...

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