Tunisian ‘Hanging Garden’ Farms Cling on Despite Drought

A Tunisian flag flutters on a makeshift boat on the Salt Lake in Kebili province, southern Tunisia August 29, 2022. REUTERS/Jihed Abidellaoui
A Tunisian flag flutters on a makeshift boat on the Salt Lake in Kebili province, southern Tunisia August 29, 2022. REUTERS/Jihed Abidellaoui
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Tunisian ‘Hanging Garden’ Farms Cling on Despite Drought

A Tunisian flag flutters on a makeshift boat on the Salt Lake in Kebili province, southern Tunisia August 29, 2022. REUTERS/Jihed Abidellaoui
A Tunisian flag flutters on a makeshift boat on the Salt Lake in Kebili province, southern Tunisia August 29, 2022. REUTERS/Jihed Abidellaoui

High in the hills of northwestern Tunisia, farmers are tending thousands of fig trees with a unique system of terracing they hope will protect them from ever-harsher droughts.

But the "hanging gardens" of Djebba El Olia have been put to the test this year as the North African country sweltered through its hottest July since the 1950s.

That has exacerbated a long drought that has left Tunisia's reservoirs at just a third of their capacity.

The gardens are supplied with water from two springs high in the mountains.

The water is fed into the orchards by a network of canals that are opened and shut at set times, according to the size of the orchard.

Crucially, a wide variety of crops provides resilience and in-built pest control, unlike the monocultures that dominate modern agriculture and require huge inputs of pesticides to survive.

"We grow figs but also other trees like quinces, olives and pomegranates, and beneath them we plant a wide range of greens and legumes," said activist Farida Djebbi as insects buzzed between thyme, mint and rosemary flowers.

Djebbi pointed out some of the channels, which irrigate the area's 300 hectares (740 acres) of steeply sloping orchards.

In 2020, the Food and Agriculture Organization recognized the system as an example of "innovative and resilient agroforestry", adding it to an elite list of just 67 "Globally Important Agricultural Heritage Systems".

The system "has been able to adapt and take advantage of an inhospitable topography", the UN agency said.

"Through the use of natural geological formations and the use of stones, local communities have been able to transform the landscape into fertile and productive lands."

The FAO praised the diversity of local crop varieties grown by the area's farmers, as well as their use of wild plants to repel potential pests and of livestock to "plough" and fertilize the soil.

- Growing up with figs -

While nobody knows exactly how old the system is, human habitation in the area predates the Carthaginian civilization founded in the ninth century BC.

But while it may have endured for generations, the system is under threat as climate change kicks in.

Activist Tawfiq El Rajehi, 60, says the flow of water from springs irrigating the area has dropped off noticeably, particularly in the past two years.

Unlike in previous years, the surrounding peaks no longer get covered in snow each winter, and the leaves of many of the trees in the lower part of Djebba are yellowing and sick.

Rajehi, a teacher at the local school, said climate change and low rainfall were compounded by another factor: farmers favoring cash crops.

"Some farmers have moved to growing more figs instead of less water-intensive crops because figs have become more profitable in recent years," he said.

"We need to keep a good balance and variety of plants."

Nevertheless, residents say they are proud of their heritage.

Farmer Lotfi El Zarmani, 52, said there was also growing demand for Djebba figs, which were given a protected designation of origin by the agriculture ministry in 2012 -- still the only Tunisian fruit to enjoy the certification.

"They're getting a reputation, plus exporting them has become easier, plus they bring higher prices," Zarmani said.

Rajehi's daughter, university student Chaima, put on protective gloves as she set out to harvest the fruit from her family's small lot.

"Figs are more than a fruit for us. We're born here among the fig trees and we grow up with them, we learn from a young age how to look after them," the 20-year-old said.

Djebbi is working to persuade farmers to preserve traditional ways of processing the products harvested in the area.

She is working with 10 other women on a cooperative that distils essence from wildflowers, dries figs, and produces fig and mulberry jam.

"Products we learnt how to make from our mothers and grandmothers are becoming popular because they're of such high quality," she said.



Bull Sharks Linger in Warming Sydney Waters

A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)
A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)
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Bull Sharks Linger in Warming Sydney Waters

A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)
A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)

Bull sharks are lingering off Sydney's beaches for longer periods each year as oceans warm, researchers said Friday, predicting they may one day stay all year.

The predators are migratory, swimming north in winter when Sydney's long-term ocean temperatures dip below 19 degrees Celsius (66 degrees Fahrenheit) to bask in the balmier waters off Queensland.

A team of scientists looked at 15 years of acoustic tracking of 92 tagged migratory sharks in an area including Bondi Beach and Sydney Harbour.

Records show the sharks now spend an average of 15 days longer off Sydney's coast in summer than they did in 2009, said James Cook University researcher Nicolas Lubitz.

"If they're staying longer, it means that people and prey animals have a longer window of overlap with them."

Shark attacks are rare in ocean-loving Australia, and most serious bites are from three species: bull sharks, great whites, and tiger sharks, according to a national database.

There have been more than 1,200 shark incidents around Australia since 1791, of which over 250 resulted in death.

Researchers found an average warming of 0.57C in Bondi for the October-May period between 2006 and 2024, said the study published in the peer-reviewed journal Science of The Total Environment.

Over a longer period, remotely sensed summer sea-surface temperatures in the area rose an average 0.67C between 1982 and 2024, they said.

"If this trend persists, which it likely will, it just means that these animals are going to spend more and more time towards their seasonal distributional limit, which currently is southern and central New South Wales," Lubitz said.

"So it could be that a few decades from now, maybe bull sharks are present year-round in waters off Sydney," he added.

"While the chances of a shark bite, and shark bites in Australia in general, remain low, it just means that people have to be more aware of an increased window of bull shark presence in coastal waters off Sydney."

Climate change could also change breeding patterns, Lubitz said, with early evidence indicating juvenile sharks were appearing in rivers further south.

There was some evidence as well that summer habitats for great whites, which prefer colder waters, were decreasing in northern New South Wales and Queensland, he said.

Tagged sharks trigger an alarm when they swim within range of a network of receivers dotted around parts of the Australian coast, giving people real-time warnings on a mobile app of their presence at key locations.