Health/Food Posts Tagged as 'Terraforming'
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'Ghost' DNA In West Africans Complicates Story Of Human Origins
About 50,000 years ago, ancient humans in what is now West Africa apparently procreated with another group of ancient humans that scientists didn't know existed.
There aren't any bones or ancient DNA to prove that theory, but researchers say the evidence is in the genes of modern West Africans. They analyzed genetic material from hundreds of people from Nigeria and Sierra Leone and found signals of what they call "ghost" DNA from an unknown ancestor.
Our own species — Homo sapiens — lived alongside other groups that split off from the same genetic family tree at different times. And there's plenty of evidence from other parts of the world that early humans had sex with other hominins, like Neanderthals.
That's why Neanderthal genes are present in humans today, in people of European and Asian descent. Homo sapiens also mated with another group, the Denisovans, and those genes are found in people from Oceania.
From snake oil to science: I peddled 'clean' eating, wellness — until I learned the facts
Marketing that organic food is cleaner is all around us. Just take a look at the campaign “Skip the Chemicals.” It encourages consumers to fear the scary-sounding names of chemicals and adopt a better-safe-than-sorry attitude toward their food. Ultimately, though, it steers consumers toward more costly organic foods, although there is no evidence that organic foods are more nutritious.
The “Dirty Dozen” list is another marketing ploy. Not only did I have this list stuck to my fridge at home, I also encouraged my clients to download and share it. Using pesticide residue data from the USDA, it ranks food by the levels of detected pesticides to generate a list of the top 12 fruits and vegetables consumers should avoid in their conventional versions.
Take strawberries, which topped the list in 2018. The USDA published test results on tens of thousands of nonorganic fruit and vegetable samples across the country. Most of the samples of strawberries showed residues of at least one kind of pesticide and, in one sample of strawberries, 22 different pesticide residues were detected — but that doesn’t mean the pack of strawberries you buy at the grocery store will have 22 pesticides.
MONSTER HYBRID TUMBLEWEED SPECIES IS TAKING OVER CALIFORNIA, SCIENTISTS WARN
A new invasive species of tumbleweed that can grow up to six feet in height is taking over parts of California—and scientists are warning it could spread even further as climate change makes its growing conditions more favorable.
Salsola ryanii was first identified in California in 2002. It is a hybrid made up of two other invasive species—Salsola tragus, which is native to Russia and China, and Salsola australis, from Australia and South Africa. The latter, scientists say, is "one of the world's worst weeds" and is currently found in 48 U.S. states. The new species, is however, far bigger and faster growing than its parents, reaching about six feet in height.
A tumbleweed is a plant that breaks away from its roots towards the end of summer. It is blown around by the wind—its means of seed dispersal. In doing this, tumbleweeds cause huge problems. They can lead to traffic accidents and damage property. Invasive species also cause problems for the agriculture industry and native ecosystems.
Tree-planting projects may not be so green
Brides and grooms do it. Transatlantic travellers do it. And you might even be getting it for Christmas. Neutralising your carbon emissions is becoming the must-do activity for the eco-conscious citizen. But now an international team of scientists has raised an unexpected objection: some tree-planting projects may, they suggest, be doing more harm than good.
Carbon offsetting allows people to pay someone else to atone for their climate sins by soaking up the CO2 that they produce. And with the consequences of global warming becoming more apparent, more Britons are opting to undo their personal share of the damage.
Last year companies and individuals in the UK spent around £4m offsetting carbon emissions. The Kyoto protocol allows member countries to do the same through carbon trading.
But it seems the guilt-free option is not as simple as writing a cheque and leaving it to someone else to sort out. Researchers have found that planting trees to soak up carbon can have detrimental knock on effects. "I believe we haven't thought through the consequences of this," says team-member Robert Jackson at Duke University in North Carolina, "I think the policy could backfire on us, but it will take decades to play out."
Jair Bolsonaro: 'Poop every other day' to protect the environment
Brazilian President Jair Bolsonaro has suggested people should "poop every other day" as a way to save the planet.
His comment came in answer to a journalist who asked him how to combine agricultural development and protecting the environment.
Mr Bolsonaro recently came under fire after official data showed an increase in deforestation in the Amazon.
He then sacked the head of the agency that reported the increase, accusing it of lying about the problem's scale.
In the future, only the rich will be able to escape the unbearable heat from climate change. In Iraq, it’s already happening
At a time when European countries are enduring some of the highest temperatures ever recorded, and as extreme weather becomes more common, Baghdad offers a troubling glimpse into a future where only the wealthy are equipped to escape the effects of climate change.
First human-monkey chimera raises concern among scientists
Efforts to create human-animal chimeras have rebooted an ethical debate after reports emerged that scientists have produced monkey embryos containing human cells.
A chimera is an organism whose cells come from two or more “individuals”, with recent work looking at combinations from different species. The word comes from a beast from Greek mythology which was said to be part lion, part goat and part snake.
The latest report, published in the Spanish newspaper El País, claims a team of researchers led by Prof Juan Carlos Izpisúa Belmonte from the Salk Institute in the US have produced monkey-human chimeras. The research was conducted in China “to avoid legal issues”, according to the report.
Chimeras are seen as a potential way to address the lack of organs for transplantation, as well as problems of organ rejection. Scientists believe organs genetically matched to a particular human recipient could one day be grown inside animals. The approach is based on taking cells from an adult human and reprogramming them to become stem cells, which can give rise to any type of cell in the body. They are then introduced into the embryo of another species.
ARE YOUR PALM TREES HARBORING ROOF RATS?
There’s something inherently relaxing and beautiful about watching palms sway in the warm breeze. Palm trees grow well in Louisiana’s warm, humid climate as well, making them a seemingly perfect addition to your landscape.
Of course, humans aren’t the only ones with an eye for palm trees – other creatures love them too, but not necessarily for their aesthetics.
Roof rats, also known as fruit rats, love palms as a place to live. It’s possible that your lovely palm trees are actually harboring roof rats, and might really be encouraging vermin to invade your home.
What Are Roof Rats?
Call them what you want, roof rats, fruit rats, black rats, it all boils down to the same thing. These are the same rats that spread bubonic plague and fleas. They’ve been with humans for eons, and throughout that time, they’ve been less than ideal houseguests. Rats spread far more diseases than the frightening Black Death, though. Others include murine typhus, salmonella, rat-bite fever and leptospirosis to name only a few.
Where Do They Live?
Roof rats actually prefer to live in trees, particularly in palm trees...
A jogger trashed a homeless man's stuff. What happened next?
In September 2018, a UN report condemned Oakland's treatment of its homeless residents as "cruel and inhuman" and "a violation of multiple human rights".
"I've seen squalor, I've seen homelessness in countries around the world," said UN Special Rapporteur Leilani Farha said. "I've seen really horrific things. And I saw all of that in Oakland, but I also witnessed a cruelty there that might be unparalleled."
Deadly Virus Found In Florida, Causes Brain Swelling From Mosquito Bites
The latest U.S. healthcare news warns the rapid spread of a deadly mosquito-borne virus known as Eastern equine encephalitis (EEE) in Florida that causes brain-swelling.
According to reports, many sentinel chickens have tested positive for EEE.
The confirmed presence of the virus in Orange County’s sentinel chickens have raised “the risk of transmission to humans,” according to a statement by the county’s department of health.
Sentinels are fowls tested for the West Nile virus and EEE. Their blood samples may show the presence of the diseases but it is not necessary that they would suffer from the viruses.
The EEE virus spreading to humans via carriers like mosquitoes will lead to brain infection and swelling.
Maine Confirmed Its First Case of a Rare Tick-Borne Virus in Years. Here's What to Know About Powassan
Health officials have confirmed that an individual in Maine is sick with Powassan virus disease, marking the first time since 2017 that a person in the state has come down with the rare and serious tick-borne illness.
The Maine Center for Disease Control and Prevention announced Wednesday that a southern Maine resident was hospitalized for Powassan encephalitis—brain inflammation associated with the virus—after showing symptoms in late June. The announcement did not specify the individual’s current condition, but health officils doctors to stay vigilant about the potential spread of Powassan throughout the summer and early fall.
Here’s what to know about the tick-borne Powassan virus disease.
WHAT IS EEE VIRUS? MOSQUITOES CARRYING DEADLY VIRUS FOUND IN NEW YORK AND MASSACHUSETTS
Health officials have confirmed the potentially life-threatening Eastern Equine Encephalitis (EEE) virus has been found in mosquitoes in both New York and Massachusetts.
New York's Oswego County Health Department said on Tuesday that two mosquitoes taken from a field station at Toad Harbor Swamp in West Monroe tested positive for the EEE virus, Sycaruse.com reported.
On Tuesday, the Massachusetts Department of Public Health revealed EEE-carrying mosquitoes were identified for the first time this summer in mid-July, The Boston Globe reported. The bugs were found in the towns of Easton, Freetown, and Fairhaven, as well as the city of New Bedford.
Oswego County Public Health Director Jiancheng Huang told CNY Central: "We are working closely with state Department of Health to monitor mosquito activity around the county and will take actions as deemed appropriate based on consultations with state and regional partners."
Salmonella outbreak tied to pig-ear dog treats expands to 27 states
Cases of Flesh-Eating Bacteria Are on the Rise as Summer Heats Up: Here's How to Stay Safe
Climate change: 12 years to save the planet? Make that 18 months
Do you remember the good old days when we had "12 years to save the planet"?
Now it seems, there's a growing consensus that the next 18 months will be critical in dealing with the global heating crisis, among other environmental challenges.
Last year, the Intergovernmental Panel on Climate Change (IPCC) reported that to keep the rise in global temperatures below 1.5C this century, emissions of carbon dioxide would have to be cut by 45% by 2030.
But today, observers recognise that the decisive, political steps to enable the cuts in carbon to take place will have to happen before the end of next year.
The idea that 2020 is a firm deadline was eloquently addressed by one of the world's top climate scientists, speaking back in 2017.
Pet Dog Mauled 2-Year-Old Boy To Death, Mother Charged With Reckless Homicide
In a horrific incident, a pet dog mauled a 2-year-old to death in Louisville, Kentucky. On Tuesday, three people were indicted following the deadly dog attack.
The dog's owners — Jack Charpring Jr., 50, and Sharon Charpring, 53, — were charged with second-degree manslaughter in connection with the May 2 attack, according to Assistant Commonwealth's Attorney Jeff Cooke. The victim's mother, 25-year-old Jennifer Geiling, was charged with reckless homicide.
Authorities said the child was attacked by the dog in the Chickasaw neighborhood. The child, identified as Isaiah Geiling, was rushed to Norton Children’s Hospital after he was viciously bitten by the animal. However, doctors declared him dead a few minutes after arrival. The coroner said the child died of blunt force injuries.
Dog Owner Abandons Pet For Having 'Illicit Relationship' With Neighbor's Canine
American Airlines flight attendant bitten by emotional support dog, requires five stitches
Boys are hitting puberty earlier, partially due to rise in BMI, study suggests
Girls aren't alone in hitting puberty earlier -- boys are, too, according to a study published Monday in the medical journal JAMA Pediatrics. And boys' body mass index as children might play a role.
Researchers looked through school health records and assessed trends in height and growth for 4,090 boys born in Sweden from 1947 to 1996. Boys born later in that 50-year time period hit puberty sooner. For every decade born later, boys reached peak height velocity, or PHV -- the study's marker for puberty -- 1.5 months earlier.
The age at PHV became progressively younger for boys born later, dropping from about 14.2 years in 1947 to 13.7 years in 1996.