Jesper har i mere end 40 år gjort et kæmpe arbejde inden for Dansk Sportsdykker Forbund – og i særdeleshed inden for dansk undervandsrugby.
Jesper var en af de drivende kræfter i dansk undervandsrugby allerede fra de første år med uv-rugby i Danmark i starten af 1970’erne, og han var med i både udvikling af den internationale Tommerup Cup samt elite-arbejdet på landsholdet.
Comprising a skilled team of engineers, professional divers, and automobile enthusiasts, this collective recently orchestrated an extraordinary endeavor. They navigated a vintage Land Cruiser 4.3 miles beneath the waters of Darwin, an Australian city, setting a new bar for both the longest and deepest underwater journey.
This historic achievement, as reported by ABC News Australia, saw the vehicle reaching an astounding depth of 98 feet beneath the harbor's surface. This feat demanded more than a mere snorkel to achieve.
These sprawling masses of seaweed, often stretching for miles, have been observed in the Atlantic over the past few years. While such occurrences are not entirely new, their increasing frequency and size have raised concerns about their potential environmental impacts.
A recent in-depth exploration by BBC Future sheds light on the phenomenon, unraveling the complex factors behind the enigmatic seaweed blooms.
This compelling ten-minute film dives deep into the urgent mission to restore Tasmania's rapidly declining kelp forests, a direct casualty of climate change. The documentary follows the life and work of Mick Baron and Karen Gowlett-Holmes, owners of the Eaglehawk Dive Centre, who have been front-line witnesses and activists to the massive destruction of the giant kelp forests.
According to satellite data, 56 percent of the world's oceans have experienced a colour change from blue to green over the past 20 years. The changes are especially noticeable in tropical areas close to the Equator.
According to researchers, the gradual greening of our oceans indicates how climate change is affecting aquatic life.
Poseidon M28A dive computers are subject to this recall. They continuously calculate and provide the data that divers require. The Poseidon SE7EN Rebreather with the M28A can be used separately or together. This recall only applies to dive computers with serial numbers that begin with "M28A-". On the rear of the recalled dive computers are the serial number and two metallic wet-switches.
The Navy Experimental Diving Unit tested the Deep Sea Expeditionary with No Decompression (DSEND) Suit underwater last February.
The Atmospheric Diving Suit (ADS) used by the Navy at the moment is cumbersome, unmaneuverable, and requires relatively large sea craft for deployment. With this new project, it will be improved in a number of ways, including the rotary joint design that it now uses.
In 2019, paleontologist Karma Nanglu from Harvard University received a finger-sized fossil. The specimen had originated from a fossil-rich stratum of Cambrian limestone in western Utah, and had been kept in a drawer at a Salt Lake City museum for years.
Upon hearing that there could be a very old tunicate, Nanglu expressed excitement interlaced with caution: "That's a group for which there is essentially no fossil record for the entire 500 million years of recorded history."
For more than two years, researchers on board the French expedition ship Tara sailed through the Pacific, stopping at almost 100 coral reefs to take thousands of water and coral samples. The expedition ended in 2018, and the analysis of the massive amount of data collected has taken five years.
Now, the initial results of the data analysis have been published. The findings should help us to better understand the living conditions of corals, to check their health status and to open up new possibilities for nature conservation.
Ocean deoxygenation has detrimental repercussions. Fish, crabs and other significant species of marine life that are unable to flee these low oxygen zones may perish as a result. People who depend on them for food and employment may be subsequently impacted by their absence as many of these species are economically significant.
Additionally, there is a negative feedback loop at play: as ocean oxygen levels decline, so does its capacity to absorb carbon dioxide. This may cause global warming to accelerate even further.
