According to experts, after a billion years, when the sun heats up, the warmer atmosphere would break down carbon dioxide, killing out plant life and, as a result, cutting off Earth’s source of oxygen.
According to a research published in March 2021, plants will die off billions of years from now when the sun heats up, taking with them the oxygen in our atmosphere that people and animals need to breathe.
Kazumi Ozaki of the University of Tokyo and Chris Reinhard of Georgia Tech created models of Earth’s climatic, biological, and geological processes to help scientists better predict future atmospheric conditions on Earth. They conducted the study as part of a NASA initiative called NExSS, which aims to investigate and assess the habitability of exoplanets. Their findings were published in the peer-reviewed journal Nature Geoscience on March 1, 2021.
The current composition of the Earth’s atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.1% additional gases such as carbon dioxide, methane, water vapour, and neon. The Earth’s atmosphere did not previously contain such a high amount of oxygen.
There was no oxygen in the atmosphere throughout the first 2 billion years of Earth’s existence. When cyanobacteria, also known as blue-green algae, began producing oxygen as a byproduct of photosynthesis, low quantities of oxygen initially emerged. The Earth then experienced the Great Oxidation Event around 2.4 billion years ago. At this moment, whether due to a slowing of volcanoes’ outgassing or an evolutionary improvement that made cyanobacteria more effective, oxygen began to collect in greater quantities in the atmosphere, killing off certain bacteria but allowing more sophisticated life to emerge.
Ozaki said: “We find that the Earth’s oxygenated atmosphere will not be a permanent feature.”
The aged sun will begin to heat up as the solar system continues its life cycle. The increasing output from the sun will further make the atmosphere warmer, and the carbon dioxide in the atmosphere will ultimately start to break down because of the to the higher temperature. arbon dioxide will continue to fall until photosynthesizing creatures – those that depend on taking in carbon dioxide to exist, much as we do on oxygen – can no longer thrive, removing Earth’s supply of oxygen. When plants die due to a shortage of carbon dioxide, it will lead to a loss in the air they generate and the air humans breathe.
Scientists say that even though a billion years still remain before the end of oxygen on Earth, the speed of the depletion of oxygen will occur quite fast – in about just 10,000 years.
Reinhard explained the severity of the change: “The drop in oxygen is very, very extreme; we’re talking around a million times less oxygen than there is today.”
As the Earth de-oxiginates, there will also be an increase in methane levels, till such time tat its levels are 10,000 times higher compared to their levels now.
These changes will be too quick for the biosphere to adjust to. The ozone layer, which is composed of oxygen, will disappear, and UV radiation and heat will contribute to the extinction of both terrestrial and marine life. Except for microorganisms, all will perish, according to Reinhard.
Texas: Heat, Tropical Rains To Return But Relief Not Far Behind
Summer-like heat and humidity will once again be back as a warm front blows in from Gulf of Mexico, but relief isn’t far behind as a strong fall is also on its way.
By sunrise on Wednesday, the humidity will be back and temperatures will be in the mid-70s. Rain can also make an appearance though there is just a 20% chance of it happening.
The temperature is expected to climb up to 90 by afternoon as the clouds shed and the Sun makes an appearance. Isolated showers still can make an appearance, especially over north Houston.
Chances Of Rain
Chances of rainfall on Wednesday are less than 20% but will increase to 40% on Thursday and 30% on Friday as tropical storm Pamela raging in the Pacific Ocean contributes moisture.
The storm will turn into a hurricane and is expected to make landfall on Mexico’s western coast on Wednesday. By Friday evening a strong cold front is expected to move in and it is expected to usher in drier and cooler weather in southeast Texas on the weekend.
Temperatures will hit a high of 70+ while low will be in the 50s during the weekend.
The hurricane season normally is over in Texas by the middle of October but meteorologists are monitoring Pamela over the Pacific and it can bring heavy rain which can cause flooding later in the week.
Tornados Batter Oklahoma
Meanwhile, several tornados ripped through the state of Oklahoma late on Sunday and early Monday, causing damage but there were no immediate reports of deaths or injuries.
Heavy rain, winds, and lightning also lashed parts of Missouri, Arkansas, and Texas.
According to media reports, a tornado caused significant damage to the Tulsa suburb of Coweta, damaging houses, a school, and a gas station.
Hail as big as baseballs shattered windows and damaged vehicles in Norman, which is about 20 miles south of Oklahoma City.
Another Coronavirus Variant has Emerged – the R.1
The Delta variant of the coronavirus has been blamed for a disastrous summer for the United States.
It is however time to shift focus to another newly found variant of the virus – R.1. Experts are of the opinion that the R.1 variant of the coronavirus could be more likely to cause breakthrough infections.
It is however worth mentioning that the delta variant continues to be the most dominant variant of the coronavirus globally by a long way. The variant was found to be the cause of Covid-19 infections for approximately 92% of all the coronavirus sequences that were submitted from the United States to the Global Initiative for Sharing All Influenza Data.
In comparison, according to public health physician Charlene Brown, only 0.5% of the infections in the United States were because of the R.1 variant.
Delta is classified as a “variant of concern” by the CDC, which means there is data that it is more infectious, produces more deadly illnesses, and is less susceptible to immunization. Meanwhile, the FDA has not designated R.1 as a variant of interest or concern, but acknowledges in an April report that it appears to contain “mutations of importance.” According to the research, data shows that one of these changes may render the virus more communicable. According to Newsweek, another alteration might make it more immune to antibodies generated by vaccinated persons and individuals who have recently had Covid-19.
According to experts, the R.1 variant of the coronavirus is not a new phenomenon even though many of us could be hearing of it for the first time. According to Newsweek, this variant was first detected by scientists in Japan in November last year. It has now spread to other regions of the world, including 47 states in the United States.
The fact that R.1 was involved in an epidemic at a nursing facility in Kentucky in March, as detailed in the April CDC report, is perhaps the most alarming. According to Yahoo! News, eighteen of the 26 affected people and four of the twenty healthcare staff were completely vaccinated, suggesting that this variety may be more prone to result in breakthrough infections than its predecessors.
Having said that, the research also discovered that people who were unvaccinated as well as healthcare personnel were three to four times more prone to become infected compared to vaccinated individuals. The majority of hospitalizations and fatalities were among the unvaccinated.
The crux of this news report is to underscore the importance of getting vaccinated against Covid-19. Vaccination is our best defence against R.1, and indeed any other variant, according to Brown. R.1 is the latest variant of the coronavirus but it will also not be the last for certain, he added.
Power outages lead to shortages in groceries and other essentials in Hurricane Ida
Almost 800,000 customer remains without electricity, Louisiana residents are scrambling to load up on milk, bread and water and find gas for their cars.
Five days after Hurricane Ida hit the Southeast, more than 800,000 homes and businesses still don’t have power service. The hunt for essentials — groceries, cleaning supplies and fuel — continues fueling the people dread for the challenges still ahead.
On Friday at gas station in Louisiana lines stretched for blocks.Some markets had begun rationing water, ice, bread, milk and other staples, while one pharmacy chain had deployed mobile units to devastated communities.
Id workers deliver food on dark nights in the neighborhood by the headlights of their trucks.In New Orleans a Louisiana ran groceries and ice from a supermarket in Lafayette to an elderly Catholic nun about 2½ hours away in ideal condition.
Families gather to avoid many shopping trips and waste of critical supplies due to lack of fuel supply.The result, residents and aid workers say, is a growing sense of anguish as Louisianians confront the storm’s sprawling aftereffects.
In the Northeast after the Hurricane Ida pound the region has more than 47 death toll.
Blair Broussar said, “I’m passionate about making sure people know about how impactful the storm really was, even though you don’t see video of the French Quarter being destroyed,”
A spokeswoman told The Washington Post that the Waffle House, considered by emergency management officials the gold standard of disaster preparedness, has reopened all but 10 of the 90 restaurants it closed when the storm struck.
An estimated 825,000 electric meters remained offline as of Friday, including 700,000 from Entergy, Louisiana’s largest utility. The company said it would be another five days before its grid was fully restored, down from earlier estimates of up to three weeks.
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