Eating Too Much Protein Makes Pee a Problem Pollutant in the U.S.
In the U.S., people eat more protein than they need to. And though it might not be bad for human health, this excess does pose a problem for the country’s waterways. The nation’s wastewater is laden with the leftovers from protein digestion: nitrogen compounds that can feed toxic algal blooms and pollute the air and drinking water. This source of nitrogen pollution even rivals that from fertilizers washed off of fields growing food crops, new research suggests.
When we overconsume protein—whether it comes from lentils, supplements or steak—our body breaks the excess down into urea, a nitrogen-containing compound that exits the body via urine and ultimately ends up in sewage. Maya Almaraz, a biogeochemist at the University of California, Davis, and her colleagues wanted to see how much of this nitrogen is being flushed into the U.S. sewage system because of a protein-heavy diet. The researchers combined population data and previous work on how much excess protein the average American eats and found that the majority of nitrogen pollution present in wastewater—some 67 to 100 percent—is a by-product of what people consume. “We think a lot about sewage nitrogen. We know that’s an issue,” Almaraz says. “But I didn’t know how much of that is actually affected by the choices we’re making way upstream—when we go the grocery store, when we cook a meal and what we end up putting in our bodies.”
Once it enters the environment, the nitrogen in urea can trigger a spectrum of ecological impacts known as the “nitrogen cascade.” Under certain chemical conditions, and in the presence of particular microbes, urea can break down to form gases of oxidized nitrogen. These gases reach the atmosphere, where nitrous oxide (N2O) can contribute to warming via the greenhouse effect and nitrogen oxides (NOx) can cause acid rain. Other times, algae and cyanobacteria, photosynthetic bacteria also called blue-green algae, feed on urea directly. The nitrogen helps them grow much faster than they would normally, clogging vital water supplies with blooms that can produce toxins that are harmful to humans, other animals and plants. And when the algae eventually die, the problem is not over. Microorganisms that feast on dead algae use up oxygen in the water, leading to “dead zones,” where many aquatic species simply cannot survive, in rivers, lakes and oceans. Blooms from Puget Sound to Tampa, Fla., have caused large fish die-offs.
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Although it is possible to treat algal blooms, many of the current methods—such as spraying clay particles or chemicals over the surface of a bloom to kill and sink the algae—are not always effective at eliminating all of the harmful growth. Some of these methods can even lead to additional pollution. So the best strategy for dealing with the effects of nitrogen pollution is prevention, says Patricia Glibert, an oceanographer at the University of Maryland, who was not involved with the new study.
One option for preventing nitrogen from getting into the environment is improving wastewater treatment plants. The technology exists to remove 90 percent of nitrogen from wastewater, but only 1 percent of all U.S. sewage is currently treated this way, partly because the technology is so expensive. Equipping plants in China to remove nitrogen from three quarters of the country’s urban sewage cost more than $20 billion. Almaraz and her team suggest, however, that curbing nitrogen pollution could be approached more quickly with a change in eating habits that could save billions of dollars in the long term.
Their new study, published in Frontiers in Ecology and the Environment, broke down protein requirements by age (adults 50 to 70 years old need the most) for the current U.S. population and projected future populations out to 2055. By midcentury, the country’s population is expected to be larger overall and to have a greater percentage of older people. The researchers calculated the amount of nitrogen that would enter the environment if people ate today’s average American diet and if they instead reduced their protein intake to only what is nutritionally needed. This shift in diet alone could reduce the amount of nitrogen reaching aquatic ecosystems by 12 percent today and by nearly 30 percent in the future, according to the study’s results. Such a change could also help reduce damaging nitrogen pollution while wastewater infrastructure catches up.
“Many people think that we need to all switch to becoming vegetarians. Obviously, that’s not practical. That’s not something that is really ever going to happen,” Glibert says. Rather than cutting out any foods entirely, she suggests consumers could switch to a “demitarian” diet—an approach that focuses on reducing the consumption of meat and dairy, which currently make up about two thirds of the protein eaten in the U.S. “Enjoy your steak, enjoy your burger but go modest on your meat consumption in your following meal,” she says.
“One cool area that opens up here is how human behavior can influence our environment,” Almaraz says. “I think it can be really empowering to people to understand that, ‘hey, my choices—once those add up with other people making similar choices—can actually have a positive impact.’”
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SubscribeBadenoch blasts 'moaning' female Labour MPs over Burnham jobs 'quota'
Kemi Badenoch has told Labour women to earn a job in Andy Burnham's Cabinet instead of demanding they are handed jobs because of their gender.
The Tory leader lashed out today amid reports that female MPs are demanding the de-facto new prime minister introduce a 50:50 gender split 'quota' in his government.
Amid reports that former foreign secretary David Miliband is being lined up to return to the role, possibly with his brother Ed as Chancellor, one female minister also complained that Burnham could not have 'more Milibands than women' in the top posts.
But in a scathing article in the Times today Mrs Badenoch told them to 'stop moaning' and get chosen on merit instead of retreating into 'more of the failed identity politics that is holding back our country'.
'There are many, many reasons why you shouldn't have any Milibands in the cabinet,' she said.
'But complaining that the boys haven't given them the right jobs or that the boys are taking all the jobs, just shows that Labour's women still don't get it.'
The idea of quotas was also attacked by Baroness Jacqui Smith, Labour's Skills Minister.
Asked by Times Radio if Mr Burnham should reserve jobs for women, she said: 'No, I think what Andy Burnham should be doing is building the very best team around him to change this country.'
A letter written by the Women's Parliamentary Labour Party has called on Mr Burnham to ensure a 50:50 split between men and women in government jobs
Amid reports that former foreign secretary David Miliband (above, right, in 2010) is being lined up to return to the role, possibly with his brother Ed as Chancellor, one female minister complained that Burnham could not have 'more Milibands than women' in the top posts
But Mrs Badenoch told them to pipe down and get chosen on merit instead of retreating into 'more of the failed identity politics that is holding back our country'
A letter written by the Women's Parliamentary Labour Party and seen by the BBC has called on Mr Burnham to ensure a 50:50 split between men and women in government jobs after he succeeds Sir Keir Starmer.
'We are asking you to demonstrate this change from day one and address the toxicity and misogyny within our own party and government,' it said.
Labour has never had a female leader, while the Conservatives have had three, and Mrs Badenoch urged the government to follow its meritocratic example.
'If you run a meritocracy, then you do not have to worry about jobs for the boys,' she wrote.
'Every woman who is a Conservative MP, every woman who has ever won the leadership, has had to fight to get where she is.
'By contrast, Labour women are demanding guarantees from Burnham. But the truth is he doesn't have to give any guarantees.
'If none of Labour's women are prepared to get their hands dirty and challenge him for the leadership, their demands are toothless.'
'In fact, it's quite revealing that the women's parliamentary Labour Party has written to Burnham asking him to commit himself to at least 50 per cent female ministers.
'This has nothing to do with meritocracy. It is yet more of the failed identity politics that is holding back our country.'
Venezuela Fury and Noah Price subsidising their life by livestreaming
Venezuela Fury and her husband Noah Price look to be making their own way in the world by raking it in from their lucrative social media accounts.
The influencer daughter of Tyson and Paris Fury, 16, has become an internet sensation after tying the knot with her husband Noah, 19, earlier this year.
Since getting married and moving in together the couple have been earning thousands of pounds a month, livestreaming their life as newlyweds in their static caravan in the East Riding of Yorkshire.
And fans can't get enough of their regular life updates on TikTok and Kick, which have proved to be very profitable for the pair.
They look to be supporting themselves after Noah denied that he was given £5million by Venezuela's family as a wedding gift.
Despite his wife's huge family wealth, an estimated combined £160 million, Noah recently told his Kick followers that he 'pays for everything' for the couple.
Making light of the claims about Venezuela's millionaire financial status, Noah said: 'I actually pay for everything unfortunately. You'd expect the millionaire to pay for it wouldn't you.'
Venezuela Fury and Noah Price are earning thousands livestreaming their caravan life - after her new groom insisted he pays all the bills and denied he had £5m handout from her dad
The influencer daughter of Tyson and Paris Fury , 16, has become an internet sensation after tying the knot with her husband Noah, 19, earlier this year
Venezuela then asked their fans: 'Do you think I am a millionaire?'
Noah joked: 'She isn't a secret millionaire guys', before she broke into song and sang: 'But I live like a millionaire!'
But it seems according to estimated calculations from their social media work, Noah and Venezuela can more than afford to support themselves.
Noah has been livestreaming on platforms such as Kick and TikTok, where viewers can send paid gifts or donations.
He was previously encouraging viewers to send gifts on his honeymoon during livestreams, suggesting this is one revenue stream.
Both Noah and Venezuela have built substantial followings on Instagram and TikTok. They can potentially earn money through sponsored posts, brand collaborations, affiliate links and creator payouts.
Kick allows its creators to take home 95 per cent of the £4.99 subscription cost that fans pay.
Streamers keep 100 per cent of direct tips and donations, minus minor standard payment processing fees.
It is unclear how many subscribers Noah currently has because this information is hidden, but he does have 7,200 followers which is publicly viewable.
An industry insider has suggested Noah is making around £400 per video on TikTok, while Venezuela is likely to make £2,000 due to her following count of 1.3 million.
An industry insider has suggested Noah is making around £400 per video on TikTok, while Venezuela is likely to make £2,000 due to her following count of 1.3 million
In one video on their honeymoon, Noah asked his followers if they'd give them some more gifts now that they were married.
In a TikTok live viewed by 20,000 he said: 'Keep liking our videos people, keep sending gifts.'
After saying thank you to several of his followers he joked they should stick around on the livestream and 'watch Venezuela punch me in the mouth'.
The other half of the honeymooning couple said: 'I am, honestly!'
Noah previously confirmed that the pair don't share their finances after they were asked whether they have a shared bank account.
'She earns her money, I earn mine,' said Noah, as Venezuela joked: 'Yeah, what you gonna do about it.'
Noah went on to debunk the rumour that Tyson gave him £5million when he tied the knot with his daughter as he insisted: 'No Tyson did not give me £5million'.
Meanwhile Venezuela is being eyed up by executives for a fly on the wall TV series.
Noah went on to debunk the rumour that Tyson gave him £5million when he tied the knot with his daughter as he insisted: 'No Tyson did not give me £5million'
Boasting 1.3 million TikTok followers, Venezuela is already entertaining fans with her honest musings and candid moments, from cooking to kitting out her and Noah's static caravan home.
And following the success of the Netflix series At Home With The Furys, it is no wonder bosses are wanting to draw on the Fury popularity.
A TV insider said: 'The couple are not A-list celebrities but everyone has become obsessed with their love story.
'People are genuinely intrigued by them. Whether it’s the fact they have married so young, Venezuela’s famous family or their gypsy lifestyle, they have the ‘X factor'.
'Several TV executives think a proper fly-on-the-wall series following their lives as newlyweds in the gypsy community would be fascinating,' they told The Sun.
It is thought Netflix would be likely to produce the series due to their already established relationship with the Furys.
Venezuela's representatives told The Daily Mail: 'We have many offers on the table regarding Venezuela which we are discussing.'
