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Oxygen Loss from Oceans Dangerous for Aquatic Species: IUCN Report

Ocean oxygen loss threatens aquatic species

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Oceans
The deoxygenation in oceans is proved to be threatening for aquatic species. Pixabay

BY VISHAL GULATI

The loss of oxygen from the world’s oceans is increasingly threatening fish species and disrupting ecosystems, a new IUCN report warned.

Ocean oxygen loss, driven by climate change and nutrient pollution, is a growing menace to fisheries and species such as tuna, marlin and sharks, said the report, presented at the ongoing UN climate change conference (COP25) in this Spanish capital on Saturday.

“With this report, the scale of damage climate change is wreaking upon the ocean comes into stark focus. As the warming ocean loses oxygen, the delicate balance of marine life is thrown into disarray,” IUCN Acting Director General Grethel Aguilar said.

Oceans animals
The oxygen loss from oceans is a growing menace to fisheries and other aquatic species. Pixabay

“The potentially dire effects on fisheries and vulnerable coastal communities mean that the decisions made at the ongoing UN Climate Change Conference are even more crucial. To curb ocean oxygen loss alongside the other disastrous impacts of climate change, world leaders must commit to immediate and substantial emission cuts.”

The review report, “Ocean deoxygenation: Everyone’s problem”, is the largest peer-reviewed study so far into the causes, impacts and possible solutions to ocean deoxygenation.

Ocean regions with low oxygen concentrations are expanding, with around 700 sites worldwide now affected by low oxygen conditions — up from only 45 in the 1960s.

In the same period, the volume of anoxic waters — areas completely depleted of oxygen — in the global ocean has quadrupled, according to the report.

“We are now seeing increasingly low levels of dissolved oxygen across large areas of the open ocean. This is perhaps the ultimate wake-up call from the uncontrolled experiment humanity is unleashing on the world’s ocean as carbon emissions continue to increase,” said Dan Laffoley, Senior Advisor Marine Science and Conservation in IUCN’s Global Marine and Polar Programme and a co-editor of the report.

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Oxygen depletion in oceans is menacing marine ecosystems. Pixabay

“Ocean oxygen depletion is menacing marine ecosystems already under stress from ocean warming and acidification. To stop the worrying expansion of oxygen-poor areas, we need to decisively curb greenhouse gas emissions as well as nutrient pollution from agriculture and other sources.”

Deoxygenation is starting to alter the balance of marine life, favouring low-oxygen tolerant species (e.g. microbes, jellyfish and some squid) at the expense of low-oxygen sensitive ones (many marine species, including most fish).

Some of the oceans’ most productive biomes, which support one fifth of the world’s wild marine fish harvest, are formed by ocean currents carrying nutrient-rich but oxygen-poor water to coasts that line the eastern edges of the world’s ocean basins.

Species groups such as tuna, marlin and sharks are particularly sensitive to low oxygen because of their large size and energy demands.

Also Read- Climate Activists Unite and Support Greta Thunberg Against Her Climate Change Fight

These species are starting to be driven into increasingly shallow surface layers of oxygen-rich water, making them more vulnerable to overfishing. (IANS)

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New Rule in USA to Allow Passengers to Bring Pet Animals on Flight

New Rules Could Bump Emotional-Support Animals From Planes

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Animals
Airlines can now let passengers bring other animals on board, but hefty fees would apply. Pixabay

The days of passengers bringing rabbits, turtles and birds on planes as emotional-support animals could be ending.

The U.S. Department of Transportation on Wednesday proposed that only specially trained dogs qualify as service animals, which must be allowed in the cabin at no charge. Airlines could let passengers bring other animals on board, but hefty fees would apply.

Airlines say the number of support animals has been growing dramatically in recent years, and they have lobbied to tighten the rules. They also imposed their own restrictions in response to passengers who show up at the airport with pigs, pheasants, turkeys, snakes and other unusual pets.

“This is a wonderful step in the right direction for people like myself who are dependent on and reliant on legitimate service animals that perform a task to mitigate our disability,” said Albert Rizzi, founder of My Blind Spot, which advocates for accessibility for people of different ability levels.

Animals
Airlines say the number of support animals has been growing dramatically in recent years, and they have lobbied to tighten the rules. Pixabay

Tighter rules praised

The U.S. airline industry trade group praised the tighter rules. Industry officials believe that hundreds of thousands of passengers scam the system each year by claiming they need their pet for emotional support. Those people avoid airline pet fees, which are generally more than $100 each way.

“Airlines want all passengers and crew to have a safe and comfortable flying experience, and we are confident the proposed rule will go a long way in ensuring a safer and healthier experience for everyone,” said Nicholas Calio, president of Airlines for America.

Flight attendants had pushed to rein in support animals, too, and were pleased with Wednesday’s proposed changes.

“The days of Noah’s Ark in the air are hopefully coming to an end,” said Sara Nelson, president of the Association of Flight Attendants. The union chief said untrained pets had hurt some of her members.

Veterans groups pleased

Veterans groups have sided with the airlines, arguing that a boom in untrained dogs and other animals threatens their ability to fly with properly trained service dogs. Last year, more than 80 veterans and disability groups endorsed banning untrained emotional-support animals in airline cabins.

“It’s just interesting how people want to have the benefits of having a disability without actually losing the use of their limbs or senses just so they can take their pet with them,” Rizzi said.

Southwest Airlines handles more than 190,000 emotional support animals per year. American Airlines carried 155,790 emotional support animals in 2017, up 48% from 2016, while the number of checked pets dropped 17%. United Airlines carried 76,000 comfort animals in 2017.

Department officials said in a briefing with reporters that they are proposing the changes to ensure safety on flights. They also said some passengers have abused the current rules.

The public will have 60 days to comment on the proposed changes, and they could take effect any time after that.

The Transportation Department proposes a narrow definition of a service animal — it would be a dog that is trained to help a person with a physical or other disability. Passengers who want to travel with a service dog will have to fill out a federal form on which they swear that the dog is trained to help them with their disability. A dog that is trained to help a passenger with psychiatric needs would continue to qualify as a service animal.

Animals on Planes
Oscar the cat, who is not a service animal, sits in his carry on travel bag after arriving at Phoenix Sky Harbor International Airport in Phoenix. VOA

Note from medical professional

Currently, passengers have been allowed to bring many other animals if they have a medical professional’s note saying they need the animal for emotional support.

The proposal would prohibit airlines from banning particular types of dog breeds — Delta Air Lines bans pit bulls, for example — but airline employees could refuse to board any animal that they consider a threat to other people.

The president of the Humane Society of the United States said airlines had “maligned” pit bulls by banning them. Kitty Block said the Transportation Department’s rule against breed-specific prohibitions “sends a clear message to airlines that their discriminatory practices are not only unsound, but against the law.”

The new rules would also bar the current practice by many airlines of requiring animal owners to fill out paperwork 48 hours in advance. A department official said that practice can harm disabled people by preventing them from bringing their service dog on last-minute trips. But airlines could still require forms attesting to an animal’s good behavior and health, which could present challenges if the form has to be completed by a specific institution, Rizzi said.

Also Read- Spain Takes a Step Forward to Combat Climate Change

The proposal also says people with service animals must check in earlier than the general public, and would end the rarely seen use of miniature horses as service animals, although a Transportation Department official indicated the agency is open to reconsidering that provision.

Airlines could require that service animals be on a leash or harness and fit in its handler’s foot space. They could limit passengers to two service animals each, although it is unclear how often that happens under the current rules. (VOA)