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China’s megaconstellation launches could litter orbit for more than a century, analysts warn - SpaceNews
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Five years of COVID-19: Comments from the Society of Virology on dealing with the COVID-19 pandemic in Germany | Society of Virology
Friday June 6^th, 2025 at 11:35 PM

Gesellschaft für Virologie

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Methane leaks from dormant oil and gas wells in Canada are seven times worse than thought, study suggests
Friday June 6^th, 2025 at 11:27 PM

Phys.org - latest science and technology news stories

Methane emissions from Canada's non-producing oil and gas wells appear to be seven times higher than government estimates, according to a new study led by researchers at McGill University. The findings spotlight a major gap in the country's official greenhouse gas inventory and raise urgent questions about how methane leaks are monitored, reported and managed.

"Non-producing wells are one of the most uncertain sources of methane emissions in Canada," said Mary Kang, Associate Professor of Civil Engineering at McGill and senior author on the paper. "We measured the highest methane emission rate from a non-producing oil and gas well ever reported in Canada."

Methane is a potent greenhouse gas. Over a 20-year period, it traps about 80 times more heat in the atmosphere than the same amount of carbon dioxide. It's also associated with air pollution and health risks. Kang's team directly measured methane emissions from 494 wells across five provinces using a chamber-based method and analyzed well-level data such as age, depth and plugging status.

The national emissions estimate they arrived at—230 kilotonnes per year—is sevenfold higher than the 34 kilotonnes reported in Canada's National Inventory Report. The study was published in Environmental Science & Technology.

There are more than 425,000 inactive oil and gas wells across Canada, most of which are in Alberta and Saskatchewan. This means that the number of measured wells is very small, at only 0.1 percent.

"One surprising finding was just how much the drivers of emissions varied between provinces," said Kang. "We thought geological differences within provinces would matter more, but the dominant factors appear to be at the provincial scale, likely due to variations in policy and operational practices."

The results reveal that a small fraction of wells—especially unplugged gas wells—are responsible for the vast majority of non-producing well methane emissions. Kang says targeting these high emitters would be an efficient way to reduce emissions.

"Rather than just measuring more wells at random, we can use well attributes to identify where emissions are likely to be highest, and focus monitoring and mitigation efforts there," she said.

The study serves as a reminder of the need to rethink how old wells are managed.

"There's potential to repurpose these sites in ways that generate funding for long-term monitoring and emissions reduction," said Kang.

"Many of these sites can be transformed to produce clean energy, such as wind, solar, and geothermal," said Jade Boutot, a Ph.D. student in Kang's lab and co-author of the study.

The researchers emphasize that improving methane data is critical to meeting Canada's climate targets.

"If we don't have accurate estimates of methane emissions, we can't design effective climate policies," Kang added.

More information: Louise A. Klotz et al, Sevenfold Underestimation of Methane Emissions from Non-producing Oil and Gas Wells in Canada, Environmental Science & Technology (2025). DOI: 10.1021/acs.est.4c05602

Citation: Methane leaks from dormant oil and gas wells in Canada are seven times worse than thought, study suggests (2025, June 6) retrieved 6 June 2025 from <a href="https://phys.org/news/2025-06-methane-leaks-dormant-oil-gas.html" rel="nofollow">https://phys.org/news/2025-06-methane-leaks-dormant-oil-gas.html</a>

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

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Activist Standing In Front Of ICE SUV Knocked Down During Mass Immigration Raid in DTLA ~ L.A. TACO
Friday June 6^th, 2025 at 11:27 PM

[Untitled]

An unidentified protester who put his body on the line to prevent a white SUV full of more than a dozen detainees from being driven away was knocked down by the driver of the truck as he attempted to stop it. The event happened at around 2 PM and was broadcast on both KTLA and ABC as federal agents detained more than a dozen workers at Ambiance Apparel. This massive apparel company boasts being one of the largest West Coast suppliers of fashion resources to retailers worldwide, with a branch in China as well.

Instagram users are already flooding the company’s Instagram with comments denouncing the raid.

The mass raid was just one of many reported to take place today in Los Angeles. Earlier today, a northeast Los Angeles-based Instagram account posted a video showing more than a dozen armed agents walking up the sidewalk at The Home Depot, located at 2055 N. Figueroa St. More than a dozen migrants were reportedly detained there. ABC News confirmed this second raid earlier in the day.

The raid was documented by helicopters, much like broadcast news covers live pursuits.

The LAPD issued a statement saying they were not assisting in today’s raids. However, Ron Gochez, an activist with Union Del Barrio, alleged that the LAPD was assisting with traffic control and at 3:15 PM on a live interview with ABC, LAPD chief Jim Mcdonnell just confirmed that he received a call from the FBI requesting assistance by LAPD officers to protect their heavily armed agents after the federal agents feared for their safety after seeing the crowd of community advocates.

In 2021, Sang Bum Noh, owner of Ambiance Apparel in Los Angeles' Fashion District, was sentenced to one year in prison for undervaluing imported garments to evade millions in customs duties, laundering money, and failing to report millions in income and large cash transactions.

Los Angeles Mayor Karen Bass issued a statement standing against these raids:

“This morning, we received reports of federal immigration enforcement actions in multiple locations in Los Angeles. As Mayor of a proud city of immigrants, who contribute to our city in so many ways, I am deeply angered by what has taken place. These tactics sow terror in our communities and disrupt basic principles of safety in our city. My Office is in close coordination with immigrant rights community organizations. We will not stand for this.”

SEIU California’s President David Huerta was also confirmed to be injured and detained at an ICE raid in Los Angeles, according to a statement by SEIU. Bass confirmed on ABC’s afternoon news that Huerta is in the hospital recovering from getting “pepper-sprayed” and having an altercation with agents.

SEI is calling for an emergency protest against today’s raids to be held at the L.A. Federal Building located at 300 N. Los Angeles Street at 4 PM

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Protection from endpoint protection - privacy security workplace | Ask MetaFilter
Friday June 6^th, 2025 at 7:31 PM

West Virginia Prosecutor Warns Miscarriages Could Lead To Criminal Charges | HuffPost Latest News
Friday June 6^th, 2025 at 6:51 PM

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China’s megaconstellation launches could litter orbit for more than a century, analysts warn - SpaceNews Saturday June 7th, 2025 at 6:08 AM

Five years of COVID-19: Comments from the Society of Virology on dealing with the COVID-19 pandemic in Germany | Society of Virology Friday June 6th, 2025 at 11:35 PM

Methane leaks from dormant oil and gas wells in Canada are seven times worse than thought, study suggests Friday June 6th, 2025 at 11:27 PM

Activist Standing In Front Of ICE SUV Knocked Down During Mass Immigration Raid in DTLA ~ L.A. TACO Friday June 6th, 2025 at 11:27 PM

Protection from endpoint protection - privacy security workplace | Ask MetaFilter Friday June 6th, 2025 at 7:31 PM

West Virginia Prosecutor Warns Miscarriages Could Lead To Criminal Charges | HuffPost Latest News Friday June 6th, 2025 at 6:51 PM

China’s megaconstellation launches could litter orbit for more than a century, analysts warn - SpaceNews
Saturday June 7^th, 2025 at 6:08 AM

Five years of COVID-19: Comments from the Society of Virology on dealing with the COVID-19 pandemic in Germany | Society of Virology
Friday June 6^th, 2025 at 11:35 PM

Methane leaks from dormant oil and gas wells in Canada are seven times worse than thought, study suggests
Friday June 6^th, 2025 at 11:27 PM

Activist Standing In Front Of ICE SUV Knocked Down During Mass Immigration Raid in DTLA ~ L.A. TACO
Friday June 6^th, 2025 at 11:27 PM

Protection from endpoint protection - privacy security workplace | Ask MetaFilter
Friday June 6^th, 2025 at 7:31 PM

West Virginia Prosecutor Warns Miscarriages Could Lead To Criminal Charges | HuffPost Latest News
Friday June 6^th, 2025 at 6:51 PM