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Researchers made the discovery when they studied sulfur-oxidising bacteria in methane seeps on the ocean floor at the Del Mar East Methane Seep Field, USA. These seeps contain collections of limestone that trap large amounts of carbon.

They then observed that in the process of oxidising sulfur, the bacteria creates an acidic reaction that dissolves the rocks and this causes the carbon trapped inside the limestone to be released.



Their findings was published in the The ISME Journal: Multidisciplinary Journal of Microbial Ecology. 

After such a long lay-off out of the water, it is not surprising that several agencies are issuing safety statements as Covid-19 pandemic lockdowns are relaxed, and divers around the world get ready to resume diving.

The latest piece of advice has been issued by the Rebreather Training Council. 

A checklist is probably the cheapest piece of life support equipment a technical diver will own, but it will look after you, dive after dive. RTC

The Research Vessel R/V Petrel’s autonomous underwater vehicle (AUV) first identified the ship in its side scan sonar on March 17. Upon analysis of the sonar data, the Petrel crew deployed its remotely operated underwater vehicle (ROV) on March 18 to verify the wreckage through its video capabilities.

As more people get their first shots of Covid-19 vaccine, some airline industry traditions are coming back. Airlines are slowly returning to their old boarding policies, while quietly re-adding change fees to certain tickets.

According to Travel Weekly, the majority of major airlines will go back to assessing fees on Basic Economy fares by April 1, 2021.

Cetaceans were not limited by gravity in the buoyant marine environment and evolved multiple giant forms, exemplified today by the largest animal that has ever lived: the blue whale (Balaenoptera musculus).

There are tradeoffs, however, associated with large body size, including a higher lifetime risk of cancer due to a greater number of somatic cell divisions over time.  The largest whales can have ∼1,000 times more cells than a human, with long lifespans, leaving them theoretically susceptible to cancer.