Science
Methane Big Part Of ‘Alarming’ Rise In Planet-Warming Gases
The National Oceanic and Atmospheric Administration announced that a rise methane in the atmosphere increased at its fourth-highest annual rate in 2022, part of an overall rise in planet-warming greenhouse gases that the agency labeled “alarming.”
Though carbon dioxide receives greater attention for its involvement in climate change, scientists are especially concerned about methane because it traps far more heat — approximately 87 times more than carbon dioxide on a 20-year timeline.
Methane, a gas that comes from garbage dumps, oil and natural gas pipelines, and animals, has risen a lot since 2020. Scientists say it shows no signs of stopping, despite urgent pleas from scientists and policymakers that time is running out to reach the Paris Agreement’s temperature limits and avert the most damaging effects of climate change.
“NOAA scientists’ observations in 2022 show that greenhouse gas emissions continue to rise at an alarming rate and will stay in the atmosphere for thousands of years,” said NOAA Administrator Rick Spinrad in a statement that came with the report. “The time has come to address greenhouse gas pollution and reduce human-caused emissions as we work toward becoming a climate-ready nation.”
In 2022, methane increased by 14 parts per billion to 1,911.9 ppb. It increased significantly quicker in 2020 (15.20 ppb) and 2021. (17.75 ppb).
Methane gas escapes rise through wells and natural gas lines, as well as from manure ponds, decaying landfills, and cattle.
“Ruminant animal herds, particularly goats, sheep, and cows, are one of the largest human-driven sources of methane,” said Stephen Porter, a Brown University professor of ecology and assistant provost for sustainability.
Scientists continue to discover that methane emissions from the fossil fuels industry and the environment are vastly understated.
The precise amounts of methane emitted by human activities vs. natural habitats in recent years are unknown, but scientists say humans have limited control over ecosystems that begin leaking more methane due to warming.
“If this rapid rise is due to wetlands and natural systems responding to climate change, that’s very scary because we can’t do much to stop it,” said Duke University professor and former NASA climate scientist Drew Shindell. “If methane leaks from the fossil fuels sector, we can enact regulations.” But we can’t create rules on what swamps do.”
Scientists are also investigating how the persistent three-year La Nina pattern may have influenced methane emissions caused by increased rainfall in tropical wetlands.
According to Shindell, human-induced methane emissions account for around 26% of the warming produced by human activity.
Transitioning away from fossil fuels and limiting the number of ruminant animals fed are “sure-fire ways to reduce methane in the atmosphere and limit warming,” according to Porter.
According to the International Energy Agency, existing technologies may eliminate 70% of methane emissions by 2022.
According to the NOAA report, carbon dioxide and nitrous oxide levels will rise significantly in 2022.
Carbon dioxide levels increased to 417.06 ppm in 2022, making them 50% higher than pre-industrial levels. Nitrous oxide, the third-most major greenhouse gas emitted by humans, increased to 335.7 ppb, owing mostly to fertilizers and manure from the increasing agricultural sector.
SOURCE – (AP)
Science
Australia Asks Residents to Catch Deadly Funnel Web Spider
As summer approaches in Australia, residents are warned to look out for the funnel web spider, one of the country’s deadliest species.
In addition to advising the public to avoid funnel-web spiders during mating season, the Australian Reptile Park in New South Wales has even asked people to capture live funnel-web spiders so they can “milk” their venom.
Native to eastern Australia, the funnel web spider can kill humans in as little as fifteen minutes if they do not receive medical treatment for its poisonous bite.
There have been thirteen fatalities attributable to this species, but none since the development of antivenom in 1981. The Australian Reptile Park is appealing to the public for assistance capturing and donating spiders, as the serum relies on milking live spiders.
Hunting for the funnel net spider in residential areas is common practice after a particularly wet and warm season. Look for spiders in cool, dark places like pools, garden residue, heaps of dirty clothing, and outside shoes.
Australian Reptile Park spider keeper Emma Teni recently blogged about how they rely on spider donations more than ever, especially now that breeding season has arrived and the temperature is perfect.
“Male funnel-web spiders have short lifespans, and with approximately 150 spiders required to make just one vial of antivenom, we need the public’s help to ensure we have enough venom to meet demand.”
“If you spot an egg sac while collecting a spider, it’s important to safely collect that as well,” said Teni. “It can provide a robust supply of healthy young spiders to aid in our antivenom production.”
The spiders won’t be able to climb plastic or glass, but Teni suggests capturing funnel webs in a wide-mouthed jar with a cover. Then, you can lead the spiders into the container using a long spoon or something similar.
After that, fill the jar with moist soil, screw on the top, and bring it to the designated drop-off spot.
“We depend on the public for spider donations, and we want to make sure everyone stays safe during the collection process, especially with conditions being so favourable this year,” said Teni.
Related News:
Trudeau Orders Facebook to Block Presser Video from Australia
Science
A Spacecraft Is On Its Way To A Harmless Asteroid Slammed By NASA In A Previous Save-The-Earth Test
CAPE CANAVERAL, Florida – A spacecraft launched Monday to probe the site of a cosmic accident.
The European Space Agency’s Hera spacecraft launched on a two-year trip to the little, harmless asteroid slammed by NASA two years ago as a practice run for the day when a murderous space rock threatens Earth. It’s the second phase of a planetary defense experiment that could one day save the globe.
SpaceX’s Falcon rocket vanished with Hera into the late morning clouds. An hour later, cheering erupted in the control center in Germany as the spacecraft split from the rocket’s upper stage and returned home. “It’s an amazing day,” the space agency’s director general, Josef Aschbacher, said later.
The 2022 crash of NASA’s Dart spacecraft reduced Dimorphos’ orbit around its larger companion, indicating that if a harmful rock was heading our way, it might be pushed off course with adequate warning.
A Spacecraft Is On Its Way To A Harmless Asteroid Slammed By NASA In A Previous Save-The-Earth Test
Scientists are eager to analyze the aftermath of the impact up close to determine how effective Dart was and what improvements may be required to protect Earth in the future.
“The more detail we can glean the better as it may be important for planning a future deflection mission should one be needed,” University of Maryland astronomer Derek Richardson stated before launch.
Researchers want to know if Dart (short for Double Asteroid Redirection Test) created a crater or changed the 500-foot (150-meter) asteroid more dramatically. It seemed to be a flying saucer before Dart’s blow and may now resemble a kidney bean, according to Richardson, who participated in the Dart mission and is assisting Hera.
Dart’s wallop sent rubble and boulders hurtling off Dimorphos, adding to the impact’s momentum. For months, the debris track extended thousands of miles (almost 10,000 kilometers) into space.
According to flight director Ignacio Tanco, some rocks and debris may still be hovering about the asteroid, posing a threat to Hera.
A Spacecraft Is On Its Way To A Harmless Asteroid Slammed By NASA In A Previous Save-The-Earth Test
“We don’t really know very well the environment in which we are going to operate,” Tanco informed me. “But that’s the whole point of the mission is to go there and find out.”
European authorities refer to the $400 million (363 million euros) effort as a “crash scene investigation.”
“Hera is going back to the crime scene and getting all the scientific and technical information,” said project manager Ian Carnelli.
Carrying a dozen science instruments, the compact car-sized Hera must swing past Mars in 2025 for a gravitational boost before landing at Dimorphos by the end of 2026. It’s a moonlet of Didymos, the Greek word for twin, a five-times larger asteroid that spins quickly. At that point, the asteroids will be 120 million miles (195 million kilometers) from Earth.
Hera will attempt to enter orbit around the rocky duo, progressively reducing flyby distances from 18 miles (30 kilometers) to a half-mile (1 kilometer). The spacecraft will examine the moonlet for at least six months to determine its mass, shape, composition, and orbit around Didymos.
Before the crash, Dimorphos circled its larger partner from three-quarters of a mile (1,189 meters) away. Scientists believe the orbit has become tighter and more oval-shaped, and that the moonlet may be tumbling.
Two shoebox-sized Cubesats will launch from Hera for even closer drone-like examinations, with one employing radar to peek beneath the moonlet’s boulder-strewn surface. Scientists believe Dimorphos was produced from particles shed by Didymos. The radar measurements should assist in determining whether Didymos is the small moon’s parent.
A Spacecraft Is On Its Way To A Harmless Asteroid Slammed By NASA In A Previous Save-The-Earth Test
After their survey, the CubeSats will attempt to land on the moonlet. If the moonlet tumbles, the situation will become more complicated. Hera may potentially conclude its mission with a perilous touchdown but on the bigger Didymos.
Asteroids, which are remnants of the solar system’s origin 4.6 billion years ago, circle the sun principally between Mars and Jupiter in what is known as the main asteroid belt, where millions of them live. When they fall from the belt and land in our area, they become near-Earth objects.
NASA now has around 36,000 near-Earth objects, the majority of which are asteroids, although there are also some comets. More than 2,400 of them are deemed potentially dangerous to the Earth.
SOURCE | AP
Science
A Rare Comet Brightens The Night Skies In October
NEW YORK — Prepare to spot a rare and dazzling comet.
The space rock is hurling toward Earth from the far reaches of the solar system and will make its closest approach on Saturday. It should be visible through the end of October, assuming clear skies.
A Rare Comet Brightens The Night Skies In October
Comet Tsuchinshan-Atlas should be visible to the naked eye, but binoculars and telescopes will provide a clearer view.
“It’ll be this fuzzy circle with a long tail stretching away from it,” explained Sally Brummel, planetarium manager at the Bell Museum in Minnesota.
What is a comet?
They are frozen remains from billions of years ago when the solar system was formed. They heat up as they swing toward the sun, revealing their distinctive streaming tails.
In 2023, a green one that had last visited Earth 50,000 years ago flew past again. Other significant flybys were Neowise in 2020 and Hale-Bopp and Hyakutake in the mid to late 1990s.
Where did Tsuchinshan-Atlas come from?
Also known as C/2023 A3, was found last year and named after the observatories in China and South Africa that spotted it.
It originated in the Oort Cloud, which extends far beyond Pluto. After making its closest approach to Earth at 44 million miles (71 million kilometers), it will not return for another 80,000 years, provided it survives the journey.
A Rare Comet Brightens The Night Skies In October
Every year, several comets are detected, but many of them burn up near the sun or are too far away to be observed without special equipment, according to Larry Denneau, a key researcher with the Atlas telescope that helped discover it.
How to View
Those seeking to see Tsuchinshan-Atlas should go outside about an hour after sunset on a clear night and look to the west.
The comet should be visible from both the Northern and Southern Hemispheres.
SOURCE | AP
-
Politics2 weeks ago
Trudeau Orders Facebook to Block Australian Presser Video
-
Business4 weeks ago
Canada CBC News CEO Catherine Tait Recalled to Parliamentary Committee
-
Celebrity4 weeks ago
Shaun White’s Proposal To Nina Dobrev Was Romantic Gold
-
Tech4 weeks ago
Apple Launches The IPhone Into The AI Era With Free Software Update
-
News3 weeks ago
Pro-Khalistanis Sikhs Attack Hindu Temple in Brampton
-
Food4 weeks ago
Starbucks Is Making A Popular Add-On Free Of Charge