Flood Banks, River Bends and Wings

Welcome to Positive Times. It is Sunday, the eighth of November, twenty twenty-six. Today we follow four stories: flood defences already in operation, a river seen from orbit, an agreement for water in Uganda, and seven eagles released into the wild in Sardinia. One simple question guides us: which part of the story has happened, and which part do we still need to observe?

Severn Stoke heads into winter with new flood defences

We begin in Severn Stoke, an English village. On the sixth of November, the Environment Agency announced that the new flood protection system was operational ahead of winter. A flood bank runs west of the village. There is new drainage to manage surface water, and a raised stretch of road where it crosses the bank. The protection is ready, but planting, landscaping and habitat work will continue over the coming months. These are separate parts of the same project. Reducing risk does not remove every possibility of flooding. The concrete achievement is infrastructure that can already perform its function. Our editorial thought: prevention has a curious publicity problem. When it works, often nothing happens. And that is exactly what we were hoping for.

• Environment Agency · Flood risk reduced for Severn Stoke ahead of winter months

From orbit, the San Juan reveals its deep bends

Now we travel up to the International Space Station. A photograph published by NASA on the sixth of November shows the great bends of the San Juan River in Utah. It was taken on the sixth of October: the date of the photograph and its publication are different. The canyons were already known. The Utah Geological Survey explains that the river formed its bends across relatively flat ground. Later uplift of the region encouraged it to cut deeper into the rock. The loops remained as the channel deepened. From above, the shape becomes easier to read. It is a newly published photograph to explore, not the discovery of a new river. And our navigation app can take a break: the shortest route is not the hero of this story.

• NASA Earth Observatory · Taking a Gander at Utah’s Goosenecks
• Utah Geological Survey · GeoSights: The Goosenecks of the San Juan River, San Juan County, Utah

West Nile agreement backs more reliable water and sanitation

In Uganda, an agreement signed on the sixth of November supports water and sanitation in Yumbe and Madi-Okollo districts, which also host refugees. Austria is contributing three and a half million euros. UNICEF adds three hundred and ninety thousand euros, bringing the total to three million eight hundred and ninety thousand. The programme aims to reach more than seventy-two thousand people over its planned period, which ends in September twenty twenty-nine. It includes solar-powered water systems and improvements serving schools, communities and health facilities. Pause on the word “aims”. That is a target, not a count of people already all reached by the new services. The positive step is the agreed funding. Turning it into available water and working infrastructure is the task still to deliver and verify.

• UNICEF Uganda · Austria funds expansion of climate-resilient water and sanitation services for children in West Nile

Seven Bonelli’s eagles take flight in Sardinia

Our fourth story comes from Sardinia. On the fifth of November, ISPRA reported the recent release of seven Bonelli’s eagles under the LIFE Abilas project. Two are adults from Spain; five are young birds from twenty twenty-six. The report says the release happened a few days earlier, without giving an exact date. The birds are followed with GPS devices. According to ISPRA, their initial adaptation to the wild is positive. That is an encouraging sign to keep observing. It does not yet prove that reintroduction has established a stable population. Releasing birds and checking their survival over time are separate steps. This good news therefore has seven characters in the air, and monitoring work that continues on the ground.

• ISPRA · Nuove Aquile di Bonelli hanno da pochi giorni spiccato il volo nei cieli della Sardegna

Why does a shell sound like the sea?

And now our small discovery: why does a shell near your ear seem to contain the sea? It has not recorded the waves. Its cavity changes the surrounding sound, making some frequencies more noticeable. Shape and size change the result. A similar effect can be noticed with an empty cup or a cupped hand held near an ear. So the object does not have to come from a beach. If we really are by the sea, the waves can of course be part of the sounds around us. Our little invitation is to compare two different cavities and listen to how the sound changes. The shell is not preserving a holiday: it lets us hear our present surroundings in a different way.

• Cal Alumni Association, University of California Berkeley · Glad You Asked — seashell sound, response credited to Marian Diamond
• I’m a Scientist · Why do we hear the ocean when we put a shell to our ear? — Sean Murphy

Texts, images and sources are in the eighth of November edition of Positive Times. Thank you for spending this time with us. Until our next discovery, with a little more attention to what we see and hear.