Scientists suspect warming temperatures may explain the presence of white sharks in Monterey Bay, California.
A large group of white sharks have settled along the central coast of California, captivating seafarers, residents, local media and scientists.
Marine biologists are investigating why sharks – the world’s largest predatory fish – ventured to California’s Monterey Bay.
Adult white sharks usually reside in warm waters in southern California, near the US-Mexico border. But these fish have been wandering northward over the past few years, leading to their frequent appearance in Monterey Bay since 2014.
Scientists suspect warming oceans may play a role in the shark’s surprising shifts.
“White sharks are heat-resistant – they have a warmer internal temperature, making them more like mammals than fish. Especially when born, they must be in the golden temperature range not too hot, not too cold, “Sal Jorgensen, a senior researcher on the Pacific white shark at Monterey Bay Aquarium, told Guardian.
Together with researchers at local universities, Jorgensen is tagging and tracking white sharks, to better understand how these ancient, large sea predators deal with climate change. .
He said that warming ocean temperatures – due to a climate crisis – may have drawn sharks to areas previously too cold to live comfortably.
A group of young sharks migrating to Monterey Bay have caused some warnings. Local media sent reporters on helicopters to record their images. Travel boat companies started offering shark watching trips.
Experts say the group causes little danger to humans. Adult white sharks, which can reach up to 6 meters long, are the pinnacle of prey to hunt marine mammals such as sea lions and seals. Juveniles are smaller than half, eating only fish and small squid.
Many of the protections enacted in the mid-1990s in California have helped the local white shark population thrive, although scientists are still studying the exact size and trend of the individual.
A 2011 study estimated that 219 adult white sharks live off the coast of Central California. This species is classified as a vulnerable group on the IUCN International Red List (IUCN).
The North Pole is burning intensely, and the fire is so large it is visible from outer space
The Arctic, though warming in recent years, is nonetheless one of the coldest places on the planet with ice all around. The thing is, when we went through the record-breaking June, then … oh my god, believe it, the North Pole is literally catching fire.
In areas from Greenland through Siberia and Alaska, flames are spreading, pushing giant smoke columns across the upper part of the Northern Hemisphere, creating a stuffy atmosphere.
It is known that the story took place in early June, when more than 100 fires broke out and burned the bushes around the Arctic belt. In Russia, 11 of the 49 areas are currently in fire. With an unusually hot, dry summer, even the icy Greenland is currently burning for days. And you know what, that fire could even be seen from space, through satellite systems.
In fact, the fact that the Arctic has a fire is not too rare, because it has a pretty rich bush system. In addition, there are many frozen waters here where methane is trapped inside, so if handled well, it can create fiery ice.
However, in recent years, things are getting worse due to the consequences of climate change. Currently, the number of fires with extreme intensity is very large.
According to Thomas Smith, an environmental geologist from the London School of Economics, this year’s intensity is unprecedented for a total of 16 years of satellite data collection. Fires are gradually reaching carbon stocks, and can make the climate warmer.
“This is one of the largest fires on the planet, even some places larger than 100,000ha” – Smith said.
“The amount of CO2 emitted from the Arctic belt in June 2019 is greater than what is emitted from ALL fires in the same period from 2010-2018.”
Even unburnt areas are suffering. As noted by NASA’s Earth Observatory, there is now a huge pillar of smoke covering Russia, causing the air quality in major cities to drop dramatically.
Experts estimate that without preventive action, the consequences of these fires will be devastating, especially for the current climate change.