Bering strait, image taken by MISR satellite
Bering strait, image taken by MISR satellite

Arctic Ocean now less salty

Researchers have found that the Arctic Ocean is becoming less salty, because the amount of freshwater flowing through the Bering Strait into it has increased by 40 to 50 percent, over the past 30 years.

This finding is based on a new study by the University of Maryland Center for Environmental Science. According to lead author Lee Cooper, “This could have a lot of downstream implications for how the Arctic Ocean works and connects with climate and related processes, including the intensity of mixing in the North Atlantic.”   

First ever underwater guided tour of HMS Erebus

In a video streamed live from the Queen Maud Gulf off Nunavut, underwater archaeologist Ryan Harris moved from stern to bow, stopping at a handful of different points along the wreck to share clues from the long-sunk vessel.

He started by inspecting two brass six-pounder canons, one of the first features the team saw with a remotely operated vehicle when they began inspecting the site with an “underwater robot”, after the 19th-century wreck was discovered late last summer.

Astern of the wreck, Parks Canada underwater archaeologist Filippo Ronca measures the muzzle bore diameter of one of two cannons found on the site, serving to identify this gun as a brass 6-pounder

Historic Franklin Expedition shipwreck identified as HMS Erebus

Two ships, HMS Erebus and HMS Terror, were part of Sir John Franklin's doomed expedition in 1845 to find the Northwest Passage from the Atlantic Ocean to Asia.

The ships disappeared after they became locked in ice in 1846 and were missing for more than a century and a half until last month's discovery by a group of public-private searchers led by Parks Canada. It was not known until now which of the two ships had been found.

Unlocking the secrets of the Greenland Shark

One of the dreams of any naturalist is to be the first to find and detail the life of a hidden or unknown animal first hand. Since 2003, scientific divers with the Greenland Shark and Elasmobranch Education and Research Group (GEERG) have begun to unravel the mysterious life of the Greenland shark, which at over seven meters in maximum body length and exceeding a ton in weight, is the second largest carnivorous shark after the great white.