Nile communities carefully monitored and recorded the river’s flow. Centuries later these records are still being used by water resource managers around the world to analyse unpredictable river flows.
Changing climatic conditions and ecological hazards are an important migration driver in sub-Saharan Africa.
The Australian government is effectively spending A$95 million so it can sell water to farmers for A$10 million.
On two fronts now Morrison, who likes to be in control, is at the mercy of events he can't control: the drought, and the IMF's downgrading of Australia's growth outlook.
Yes, Australia naturally cycles through dry and wet periods. But that doesn't mean we can simply build more dams and trust they'll be filled.
We can't make it rain. But you are already helping if you don't use more water than you need. And you can talk to your parents about the planet getting warmer, because the heat makes drought worse.
For hot, dry and water-stressed countries like Botswana and Namibia, high temperatures and droughts will be more severe than the global average.
Having an envoy for drought and a prime minister keen to visit drought-affected areas puts the government under pressure to do the wrong thing.
The government has offered emergency payments to drought-stricken farmers. But if we really care about them, we'll also invest in long-term drought resilience measures to reduce impacts.
The drought in Cape Town has taught the city some valuable lessons.
Cape Town is testing new strategies to nudge domestic users into reducing their water use.
Day Zero will be the start of active water rationing when taps will be cut off and people will have to go to collection sites.
Global examples show South Africa that desalination could increase water output.
Cape Town's new water map shows users who are within the water restriction limit.
It’s important for the city of Cape Town to inspire residential trust in water restrictions. Without this, the harsh effects of the drought will be exacerbated.
Desalination has been proposed as one of many strategies to deal with the water shortages. But the process is known to be expensive and harmful to the environment.
Early warning signs of a pending drought are difficult to recognise but cities will have to be better prepared for prolonged changes in weather patterns, so that it can respond quickly.
Windhoek can teach Cape Town on dealing with drought. Technology alone is not enough.
Building resilience in Cape Town's water sector will require addressing risks like climate change, drought and flooding. Stormwater and groundwater are tipped as potential solutions.
Older people require both psychological and nutritional support during drought and famine. Kenya needs to implement a comprehensive public health response that assists during emergency situations.