Chuck Haas
@chuckhaas.bsky.social
Professor of Environmental Engineeering at Drexel University. Water treatment & reuse, risk assessment (especially microbiological risk) & environmental health. Member, National Academy of Engineering
#Philadelphia
also @ProfCharlesHaas@mastodon.social
#Philadelphia
also @ProfCharlesHaas@mastodon.social
Reposted by Chuck Haas
Amazon controls over a third of the global cloud computing market.
Its customers include Capital One, United Airlines, and the US Army.
Today's outage should be a wakeup call: Dependence on a handful of powerful corporations is a threat to economic and national security.
Its customers include Capital One, United Airlines, and the US Army.
Today's outage should be a wakeup call: Dependence on a handful of powerful corporations is a threat to economic and national security.
BREAKING: Amazon Web Services
A massive AWS outage early this morning sent major websites and apps down for several hours
Tracking site Downdetector has received over 8 million reports around the globe
A massive AWS outage early this morning sent major websites and apps down for several hours
Tracking site Downdetector has received over 8 million reports around the globe
October 20, 2025 at 11:41 PM
Amazon controls over a third of the global cloud computing market.
Its customers include Capital One, United Airlines, and the US Army.
Today's outage should be a wakeup call: Dependence on a handful of powerful corporations is a threat to economic and national security.
Its customers include Capital One, United Airlines, and the US Army.
Today's outage should be a wakeup call: Dependence on a handful of powerful corporations is a threat to economic and national security.
Reposted by Chuck Haas
I don’t know who needs to hear this but the CDC is being eviscerated right now. America is not going to have any kind of outbreak response capacity after tonight. Americans’ health data is no longer secure. Say goodbye to federal public health in any capacity. It’s a disaster. We won’t recover.
October 11, 2025 at 3:05 AM
I don’t know who needs to hear this but the CDC is being eviscerated right now. America is not going to have any kind of outbreak response capacity after tonight. Americans’ health data is no longer secure. Say goodbye to federal public health in any capacity. It’s a disaster. We won’t recover.
Reposted by Chuck Haas
This is beyond bad. All of our disease defenses are down now. We are sitting ducks. This is #RussellVought #DonaldTrump. They are endangering American lives with their insane crusade. These men are hazardous to your health and dangerous to the republic.
BREAKING: Friday night massacre underway at CDC. Doznes of "disease detectives," high-level scientists, entire Washington staff and editors of the MMWR (Morbidity and Mortality Weekly Report) have all been RIFed and received the following notice:
October 11, 2025 at 10:06 AM
This is beyond bad. All of our disease defenses are down now. We are sitting ducks. This is #RussellVought #DonaldTrump. They are endangering American lives with their insane crusade. These men are hazardous to your health and dangerous to the republic.
Reposted by Chuck Haas
they are destroying US climate science on purpose, and it hurts my heart. but take it from an MIT-trained nerdass:
all most of us need to know is that we have to stop burning stuff
stop burning stuff for heat
stop burning stuff for make car go
stop burning stuff for power
we have the tools
all most of us need to know is that we have to stop burning stuff
stop burning stuff for heat
stop burning stuff for make car go
stop burning stuff for power
we have the tools
September 30, 2025 at 2:27 AM
they are destroying US climate science on purpose, and it hurts my heart. but take it from an MIT-trained nerdass:
all most of us need to know is that we have to stop burning stuff
stop burning stuff for heat
stop burning stuff for make car go
stop burning stuff for power
we have the tools
all most of us need to know is that we have to stop burning stuff
stop burning stuff for heat
stop burning stuff for make car go
stop burning stuff for power
we have the tools
Reposted by Chuck Haas
“We will never know what diseases might have been cured or what advances in technology might have been invented had the lights not gone out in the labs.”
🧪 #giftarticle
🧪 #giftarticle
Opinion | We Are Watching a Scientific Superpower Destroy Itself
www.nytimes.com
September 8, 2025 at 2:04 PM
“We will never know what diseases might have been cured or what advances in technology might have been invented had the lights not gone out in the labs.”
🧪 #giftarticle
🧪 #giftarticle
Reposted by Chuck Haas
Vaccines are safe and effective. RFK Jr. isn’t.
August 28, 2025 at 1:43 AM
Vaccines are safe and effective. RFK Jr. isn’t.
Reposted by Chuck Haas
Want to move to Switzerland? We are looking for a postdoc to study airborne viruses:
careers.epfl.ch/job/Lausanne...
@linseymarr.bsky.social @lakdawalalab.bsky.social @corsiaq.bsky.social @influenzal.bsky.social @chuckhaas.bsky.social
careers.epfl.ch/job/Lausanne...
@linseymarr.bsky.social @lakdawalalab.bsky.social @corsiaq.bsky.social @influenzal.bsky.social @chuckhaas.bsky.social
August 11, 2025 at 4:06 PM
Want to move to Switzerland? We are looking for a postdoc to study airborne viruses:
careers.epfl.ch/job/Lausanne...
@linseymarr.bsky.social @lakdawalalab.bsky.social @corsiaq.bsky.social @influenzal.bsky.social @chuckhaas.bsky.social
careers.epfl.ch/job/Lausanne...
@linseymarr.bsky.social @lakdawalalab.bsky.social @corsiaq.bsky.social @influenzal.bsky.social @chuckhaas.bsky.social
Reposted by Chuck Haas
Vaccination rates are falling - and RFK Jr.’s CDC doesn’t want you to know. They skipped their flagship vaccine coverage study and quietly posted redacted data.
Transparency should not be optional in public health.
zurl.co/Qzn1P
Transparency should not be optional in public health.
zurl.co/Qzn1P
Under RFK Jr, CDC skips study on vaccination rates, quietly posts data on drop
Vaccination rates fell once again as nonmedical exemptions hit a new high.
zurl.co
August 5, 2025 at 11:37 AM
Vaccination rates are falling - and RFK Jr.’s CDC doesn’t want you to know. They skipped their flagship vaccine coverage study and quietly posted redacted data.
Transparency should not be optional in public health.
zurl.co/Qzn1P
Transparency should not be optional in public health.
zurl.co/Qzn1P
Reposted by Chuck Haas
UC-Berkeley has an open-rank faculty position in our incredible Climate Equity and Environmental Justice (CEEJ) research cluster. It is an extraordinary interdisciplinary group working across multiple colleges and departments at the university! More information here: aprecruit.berkeley.edu/JPF04842
Assistant/Associate/Full Professor - Climate Equity and Environmental Justice - Rausser College of Natural Resources
University of California, Berkeley is hiring. Apply now!
aprecruit.berkeley.edu
July 12, 2025 at 12:02 AM
UC-Berkeley has an open-rank faculty position in our incredible Climate Equity and Environmental Justice (CEEJ) research cluster. It is an extraordinary interdisciplinary group working across multiple colleges and departments at the university! More information here: aprecruit.berkeley.edu/JPF04842
Reposted by Chuck Haas
DOE ASR program manager just sent a colleague an excerpt from the WH DOE budget that was stealthily dropped: “BER activities in environmental system sciences, atmospheric system research, earth system modeling, data management, and the Atmospheric Radiation Measurement User Facility are terminated."
June 1, 2025 at 1:09 AM
DOE ASR program manager just sent a colleague an excerpt from the WH DOE budget that was stealthily dropped: “BER activities in environmental system sciences, atmospheric system research, earth system modeling, data management, and the Atmospheric Radiation Measurement User Facility are terminated."
Reposted by Chuck Haas
AXIOS: “.. AI could wipe out half of all entry-level white-collar jobs — and spike unemployment to 10-20% in the next one to five years, [Anthropic CEO] Amodei told us in an interview ..”
@axios.com
www.axios.com/2025/05/28/a...
@axios.com
www.axios.com/2025/05/28/a...
May 28, 2025 at 10:23 AM
AXIOS: “.. AI could wipe out half of all entry-level white-collar jobs — and spike unemployment to 10-20% in the next one to five years, [Anthropic CEO] Amodei told us in an interview ..”
@axios.com
www.axios.com/2025/05/28/a...
@axios.com
www.axios.com/2025/05/28/a...
Reposted by Chuck Haas
Following all of the Bluesky accounts of the Academies is as simple as adding the accounts in our starter pack. And there's a few feeds to boot! go.bsky.app/CeBKkMs
April 12, 2025 at 2:31 PM
Following all of the Bluesky accounts of the Academies is as simple as adding the accounts in our starter pack. And there's a few feeds to boot! go.bsky.app/CeBKkMs
Reposted by Chuck Haas
Science & the innovation economy are under threat.
"We hold diverse political beliefs, but we are united as researchers in wanting to protect independent scientific inquiry. We are sending this SOS to sound a clear warning: the nation’s scientific enterprise is being decimated."
Read & share ... 👇
"We hold diverse political beliefs, but we are united as researchers in wanting to protect independent scientific inquiry. We are sending this SOS to sound a clear warning: the nation’s scientific enterprise is being decimated."
Read & share ... 👇
Stand up.
Today I join with >1900 members of the US National Academies of Science, Engineering, and Medicine signing this letter, as individuals, decrying the assault on #science by the GOP and Trump administration.
docs.google.com/document/d/1...
Today I join with >1900 members of the US National Academies of Science, Engineering, and Medicine signing this letter, as individuals, decrying the assault on #science by the GOP and Trump administration.
docs.google.com/document/d/1...
Public Statement on Supporting Science for the Benefit of All Citizens
TO THE AMERICAN PEOPLE We all rely on science. Science gave us the smartphones in our pockets, the navigation systems in our cars, and life-saving medical care. We count on engineers when we drive acr...
docs.google.com
March 31, 2025 at 5:48 PM
Science & the innovation economy are under threat.
"We hold diverse political beliefs, but we are united as researchers in wanting to protect independent scientific inquiry. We are sending this SOS to sound a clear warning: the nation’s scientific enterprise is being decimated."
Read & share ... 👇
"We hold diverse political beliefs, but we are united as researchers in wanting to protect independent scientific inquiry. We are sending this SOS to sound a clear warning: the nation’s scientific enterprise is being decimated."
Read & share ... 👇
Reposted by Chuck Haas
People have no understanding of the enormous avoided health costs that EPA has made possible. The Clean Air Act alone has paid for all of EPA's costs by a factor of nearly 100.
March 18, 2025 at 6:56 PM
People have no understanding of the enormous avoided health costs that EPA has made possible. The Clean Air Act alone has paid for all of EPA's costs by a factor of nearly 100.
Reposted by Chuck Haas
The air quality and health models I have used throughout my career have emerged from EPA’s Office of Research and Development. Shuttering it would be a devastating loss.
www.nytimes.com/2025/03/17/c...
www.nytimes.com/2025/03/17/c...
Trump Administration Aims to Eliminate E.P.A.’s Scientific Research Arm (Gift Article)
More than 1,000 chemists, biologists and other scientists could be laid off under a plan to dismantle the Office of Research and Development.
www.nytimes.com
March 18, 2025 at 11:34 AM
The air quality and health models I have used throughout my career have emerged from EPA’s Office of Research and Development. Shuttering it would be a devastating loss.
www.nytimes.com/2025/03/17/c...
www.nytimes.com/2025/03/17/c...
Reposted by Chuck Haas
This is what many cities in the U.S. looked like before the EPA.
Why the heck would anyone celebrate deregulating it?
Why the heck would anyone celebrate deregulating it?
March 13, 2025 at 12:37 AM
This is what many cities in the U.S. looked like before the EPA.
Why the heck would anyone celebrate deregulating it?
Why the heck would anyone celebrate deregulating it?
Reposted by Chuck Haas
Measles is caused by the measles, or rubeola, virus. It transmits through the air and is extremely contagious. Its reproduction number is estimated to be 12-18, so each infected person generates 12-18 new cases in a susceptible population. Best way to avoid it: vaccination.
🚨Texas measles outbreak nears 100 cases, w/16 hospitalizations. Officials suspect it's spilled just across the border to New Mexico.
Low vax rates+undetected infections mean it will grow.
“This is going to get a lot worse before it gets better”
My latest kffhealthnews.org/news/article...
Low vax rates+undetected infections mean it will grow.
“This is going to get a lot worse before it gets better”
My latest kffhealthnews.org/news/article...
Texas Measles Outbreak Nears 100 Cases, Raising Concerns About Undetected Spread - KFF Health News
Health officials expect a measles outbreak in West Texas to exceed 100 cases because of low vaccination rates and undetected infections. Vaccine misinformation and new laws may make such situations mo...
kffhealthnews.org
February 21, 2025 at 4:35 PM
Measles is caused by the measles, or rubeola, virus. It transmits through the air and is extremely contagious. Its reproduction number is estimated to be 12-18, so each infected person generates 12-18 new cases in a susceptible population. Best way to avoid it: vaccination.
Reposted by Chuck Haas
Terminology is important as it can be very confusing to mix up those descriptors and folks think measles was wiped out in human populations. "Eradicated from the US" is not a thing. TYVM for this moment of pedantry.
February 26, 2025 at 9:13 PM
Terminology is important as it can be very confusing to mix up those descriptors and folks think measles was wiped out in human populations. "Eradicated from the US" is not a thing. TYVM for this moment of pedantry.
Reposted by Chuck Haas
Our study found that the transmission risk of measles among unvaccinated students is > 70 times higher than properly immunized ones
February 26, 2025 at 9:18 PM
Our study found that the transmission risk of measles among unvaccinated students is > 70 times higher than properly immunized ones
Why, although I have an active account here, I do not consider this to be a primary vehicle, since like other corporately owned social media, it seems to be succumbing to censorship. I prefer the #fediverse / #mastodon @joinmastodon.org.web.brid.gy
www.404media.co/bluesky-dele...
www.404media.co/bluesky-dele...
Bluesky Deletes AI Protest Video of Trump Sucking Musk's Toes, Calls It 'Non-Consensual Explicit Material'
Bluesky has deleted the most viral post reporting on an internal government protest agains the President of the United States and the world's richest man.
www.404media.co
February 26, 2025 at 9:07 PM
Why, although I have an active account here, I do not consider this to be a primary vehicle, since like other corporately owned social media, it seems to be succumbing to censorship. I prefer the #fediverse / #mastodon @joinmastodon.org.web.brid.gy
www.404media.co/bluesky-dele...
www.404media.co/bluesky-dele...
Reposted by Chuck Haas
Reposted by Chuck Haas
Unfortunately, I think years of dogmatic attitudes in some corners of science along the lines of ‘RCT is the only trustworthy form of evidence’ etc. have helped make space for flawed arguments like the below: www.washingtonpost.com/health/2025/...
February 22, 2025 at 9:44 AM
Unfortunately, I think years of dogmatic attitudes in some corners of science along the lines of ‘RCT is the only trustworthy form of evidence’ etc. have helped make space for flawed arguments like the below: www.washingtonpost.com/health/2025/...
"Eating One’s Seed Corn" - a blog post: chaasblog.wordpress.com/2025/02/19/e...
Eating One’s Seed Corn
I was going to start a longer blog post, which I hope to finalize in the next day or so. But current times (as I write this, it is immediately after the St. Valentine’s Day Massacre of personnel i…
chaasblog.wordpress.com
February 20, 2025 at 12:27 AM
"Eating One’s Seed Corn" - a blog post: chaasblog.wordpress.com/2025/02/19/e...