Teresa Carr
@teresacarr.bsky.social
Award-winning science journalist based in Colorado. Senior contributor at Undark. '18 KSJ Fellow @ MIT; former Consumer Reports staff. Bylines at The New York Times, The Guardian, Medscape, Sapiens, Texas Monthly, and others. Signal: TeresaCarr.36
It’s not just about springing forward and falling back; time zones are also out of whack. Revisiting this look at the implications of how we mark time.
Standard Time begins today. We gained an hour, but research shows millions still wake before sunrise due to time misalignment. Chronobiologists say this structural problem poses a risk to our health and safety.
People Hate Daylight Saving. Science Tells Us Why.
Something is awry about the way we mark time. Can research and policy changes help us reset the clocks?
f.mtr.cool
November 2, 2025 at 2:54 PM
It’s not just about springing forward and falling back; time zones are also out of whack. Revisiting this look at the implications of how we mark time.
On avg, having a baby in the U.S.costs nearly $3,000 out of pocket; infant childcare costs about $18,000/yr. (And far more in some areas.) Can't imagine why Americans aren't popping out more kids.
Dr Oz: "Turns out that about 1/3 families don't have the number of babies they desire. They're under-babied. So this president committed to address that during the campaign and he's delivering on that today."
October 17, 2025 at 5:25 PM
On avg, having a baby in the U.S.costs nearly $3,000 out of pocket; infant childcare costs about $18,000/yr. (And far more in some areas.) Can't imagine why Americans aren't popping out more kids.
Curious about THC inflation and contamination in legal cannabis? I'm on Reddit today at noon PT/3p ET to talk about my investigative reporting for @Undark. Ask me anything!
October 2, 2025 at 6:16 PM
Curious about THC inflation and contamination in legal cannabis? I'm on Reddit today at noon PT/3p ET to talk about my investigative reporting for @Undark. Ask me anything!
I’ve updated a ‘23 Undark story that takes a deep dive into the data on the potential link between prenatal use of acetaminophen and neurodevelopmental disorders. It reflects the uncertainty and nuance that is missing in much of the coverage. I hope you’ll read and share. undark.org/2023/07/10/c...
Can In-Utero Exposure to Acetaminophen Cause Autism and ADHD?
The question is a matter of fierce debate among scientists. Now it's making its way into the courtroom.
undark.org
September 26, 2025 at 4:29 PM
I’ve updated a ‘23 Undark story that takes a deep dive into the data on the potential link between prenatal use of acetaminophen and neurodevelopmental disorders. It reflects the uncertainty and nuance that is missing in much of the coverage. I hope you’ll read and share. undark.org/2023/07/10/c...
To answer key questions about a possible link between acetaminophen and autism, I recommend this deep dive I did for @Undark in '23. Since then, a review of 46 studies found inconsistent evidence and a Swedish study of siblings (one exposed; one not) found no association. undark.org/2023/07/10/c...
Can In-Utero Exposure to Acetaminophen Cause Autism and ADHD?
The question is a matter of fierce debate among scientists. Now it's making its way into the courtroom.
undark.org
September 23, 2025 at 5:06 PM
To answer key questions about a possible link between acetaminophen and autism, I recommend this deep dive I did for @Undark in '23. Since then, a review of 46 studies found inconsistent evidence and a Swedish study of siblings (one exposed; one not) found no association. undark.org/2023/07/10/c...
Good Lord, no. You are not interviewing Joaquin Oliver and this is not journalism.
At 4p ET/1p PT, I’ll have a one of a kind interview with Joaquin Oliver. He died in the Parkland school shooting. But his parents have created an AI version of their son for a powerful message on gun violence. Plus TX Rep. @jamestalarico.bsky.social - see you soon on Substack and later on YouTube.
August 5, 2025 at 11:45 PM
Good Lord, no. You are not interviewing Joaquin Oliver and this is not journalism.
What could go wrong?
July 23, 2025 at 10:35 PM
What could go wrong?
Reposted by Teresa Carr
The U.S. struggles to regulate the booming cannabis market without federal guidance.
Legal cannabis products often fail independent tests for THC, pesticides, & heavy metals.
Grantee @teresacarr.bsky.social, @aleszu.bsky.social, and Paulina Rowińska report for @undark.org. bit.ly/3UoiVpJ
Legal cannabis products often fail independent tests for THC, pesticides, & heavy metals.
Grantee @teresacarr.bsky.social, @aleszu.bsky.social, and Paulina Rowińska report for @undark.org. bit.ly/3UoiVpJ
Weed Regulation Is Foundering. For Answers, Look to the Labs
Lots of legal marijuana is sold with inflated THC levels or unsafe contaminants. Can the oversight system be reformed? On the Friday before Thanksgiving last year, the white dome of the Oklahoma State...
bit.ly
July 22, 2025 at 6:19 PM
The U.S. struggles to regulate the booming cannabis market without federal guidance.
Legal cannabis products often fail independent tests for THC, pesticides, & heavy metals.
Grantee @teresacarr.bsky.social, @aleszu.bsky.social, and Paulina Rowińska report for @undark.org. bit.ly/3UoiVpJ
Legal cannabis products often fail independent tests for THC, pesticides, & heavy metals.
Grantee @teresacarr.bsky.social, @aleszu.bsky.social, and Paulina Rowińska report for @undark.org. bit.ly/3UoiVpJ
Reposted by Teresa Carr
Weed Regulation is Foundering. For Answers, Look to the Labs
by @teresacarr.bsky.social for @undarated.bsky.social
Lots of legal #marijuana is sold with inflated #THC levels or unsafe contaminants. Can the oversight system be reformed?
undark.org/2025/07/16/c...
by @teresacarr.bsky.social for @undarated.bsky.social
Lots of legal #marijuana is sold with inflated #THC levels or unsafe contaminants. Can the oversight system be reformed?
undark.org/2025/07/16/c...
Weed Regulation is Foundering. For Answers, Look to the Labs
Lots of legal marijuana is sold with inflated THC levels or unsafe contaminants. Can the oversight system be reformed?
undark.org
July 16, 2025 at 4:34 PM
Weed Regulation is Foundering. For Answers, Look to the Labs
by @teresacarr.bsky.social for @undarated.bsky.social
Lots of legal #marijuana is sold with inflated #THC levels or unsafe contaminants. Can the oversight system be reformed?
undark.org/2025/07/16/c...
by @teresacarr.bsky.social for @undarated.bsky.social
Lots of legal #marijuana is sold with inflated #THC levels or unsafe contaminants. Can the oversight system be reformed?
undark.org/2025/07/16/c...
My investigation on the cannabis industry for @undark.org — supported by @pulitzercenter.bsky.social — took me from farms in OR to MA testing labs to the OK capitol, uncovering corruption and highlighting change makers along the way.
It's quite the ride. Enjoy! undark.org/2025/07/16/c...
It's quite the ride. Enjoy! undark.org/2025/07/16/c...
Weed Regulation is Foundering. For Answers, Look to the Labs
Lots of legal marijuana is sold with inflated THC levels or unsafe contaminants. Can the oversight system be reformed?
undark.org
July 16, 2025 at 3:54 PM
My investigation on the cannabis industry for @undark.org — supported by @pulitzercenter.bsky.social — took me from farms in OR to MA testing labs to the OK capitol, uncovering corruption and highlighting change makers along the way.
It's quite the ride. Enjoy! undark.org/2025/07/16/c...
It's quite the ride. Enjoy! undark.org/2025/07/16/c...
Or — hear me out — maybe the key question is how girls who were raped find justice.
" How does the president get out of this mess?" It's completely bizarre and amoral that this is the question the Washington Post talking heads are asking. Are they his lawyers? His press team?
July 15, 2025 at 3:59 PM
Or — hear me out — maybe the key question is how girls who were raped find justice.
I'm currently in treatment for an aggressive breast cancer, so this is personal. But, good grief, cancer touches every family. This affects everyone. kffhealthnews.org/news/article...
World’s Premier Cancer Institute Faces Crippling Cuts and Chaos - KFF Health News
After spearheading a 34% cut in cancer mortality, the National Cancer Institute at the NIH is bleeding resources and staff and could see its budget cut by nearly 40%.
kffhealthnews.org
July 9, 2025 at 6:30 PM
I'm currently in treatment for an aggressive breast cancer, so this is personal. But, good grief, cancer touches every family. This affects everyone. kffhealthnews.org/news/article...
@nytimes.com You know what would be awesome to have right about now? A public editor.
Always curious to see who gets to be an anonymous source!
July 4, 2025 at 1:27 PM
@nytimes.com You know what would be awesome to have right about now? A public editor.
Godspeed to journalists covering the protests. Be safe. Shine a light.
June 14, 2025 at 3:06 PM
Godspeed to journalists covering the protests. Be safe. Shine a light.
Reposted by Teresa Carr
“No children are dying on my watch,” said Rubio. It's blatantly false. Credible estimates count 190K deaths so far.
In Kenya, I am seeing devastating impact, incl this child's starvation & many deaths directly caused by Rubio’s actions. More in my @msnbc.com clip. www.instagram.com/atul.gawande...
In Kenya, I am seeing devastating impact, incl this child's starvation & many deaths directly caused by Rubio’s actions. More in my @msnbc.com clip. www.instagram.com/atul.gawande...
Atul Gawande on Instagram: "“No children are dying on my watch,” said Rubio. It's blatantly false.
So far, 190,000 children and 90,000 adults have died due to the dismantling of USAID (even assuming...
9 likes, 0 comments - atul.gawande on May 24, 2025: "“No children are dying on my watch,” said Rubio. It's blatantly false.
So far, 190,000 children and 90,000 adults have died due to the dismantlin...
www.instagram.com
May 24, 2025 at 9:28 PM
“No children are dying on my watch,” said Rubio. It's blatantly false. Credible estimates count 190K deaths so far.
In Kenya, I am seeing devastating impact, incl this child's starvation & many deaths directly caused by Rubio’s actions. More in my @msnbc.com clip. www.instagram.com/atul.gawande...
In Kenya, I am seeing devastating impact, incl this child's starvation & many deaths directly caused by Rubio’s actions. More in my @msnbc.com clip. www.instagram.com/atul.gawande...
Kudos to @consumerreports.org @theguardian.com and FERN for this investigation of price gouging at Kroger. I've caught overcharges, and had them corrected, but like most folks, I can hardly check prices on my entire cart every time I chart.
www.consumerreports.org/money/questi...
www.consumerreports.org/money/questi...
Kroger Stores Overcharging Shoppers on Sale Items, CR Price Check Finds - Consumer Reports
Consumers say Kroger has a price tag problem, resulting in overcharges for many grocery items. We sent shoppers to stores to check.
www.consumerreports.org
May 15, 2025 at 5:23 PM
Kudos to @consumerreports.org @theguardian.com and FERN for this investigation of price gouging at Kroger. I've caught overcharges, and had them corrected, but like most folks, I can hardly check prices on my entire cart every time I chart.
www.consumerreports.org/money/questi...
www.consumerreports.org/money/questi...
Reposted by Teresa Carr
If these trying times are giving you a headache, have I got the book for you! And for a limited time, you can get 25% off @barnesandnoble.com.
April 24, 2025 at 8:27 PM
If these trying times are giving you a headache, have I got the book for you! And for a limited time, you can get 25% off @barnesandnoble.com.
We’ve grown accustomed to pretty safe food. Reupping this post from the wonderful @deborahb.bsky.social as a reminder of why food regulations are a good thing.
As we start the new year, I would like to remind everyone that it is now almost 120 years since the US decided consumer protection - by which I mean regulation - mattered. Given the upcoming presidential inauguration, let's talk about how that happened - and why it's so important. (A thread)
April 24, 2025 at 12:44 PM
We’ve grown accustomed to pretty safe food. Reupping this post from the wonderful @deborahb.bsky.social as a reminder of why food regulations are a good thing.
It does make one wonder if those axing federal funding for biomedical research decided that studying the health of elderly women simply wasn’t relevant.
Let’s dream up to ways to shit on women. Oh hey, let’s cancel the largest clinical trial ever for women www.science.org/content/arti...
NIH cancels its first and largest study centered on women
The Women’s Health Initiative has produced numerous influential findings
www.science.org
April 23, 2025 at 1:28 PM
It does make one wonder if those axing federal funding for biomedical research decided that studying the health of elderly women simply wasn’t relevant.
You could go with the menstrual cycle classes b/c women are too stupid to know how to make babies.
OR, hear me out, decent wages, low-cost healthcare, paid maternity leave, affordable childcare, and universal pre-K.
OR, hear me out, decent wages, low-cost healthcare, paid maternity leave, affordable childcare, and universal pre-K.
The Trump administration is assessing ways to persuade women in the U.S. to have more children, as a movement grows on the right to reverse declining birthrates and push conservative family values. Some pitched ideas include cash baby bonuses and menstrual cycle classes. nyti.ms/4jh3UAR
April 21, 2025 at 5:12 PM
You could go with the menstrual cycle classes b/c women are too stupid to know how to make babies.
OR, hear me out, decent wages, low-cost healthcare, paid maternity leave, affordable childcare, and universal pre-K.
OR, hear me out, decent wages, low-cost healthcare, paid maternity leave, affordable childcare, and universal pre-K.
Oh FFS. One of the many reasons outlets need actual science journalists to report on science.
This is CHILLING, the secretary of the Interior is saying we don't need to worry about extinction anymore! Just call Colossal! They made dire wolves so they can take care of the wolf, or bear or whatever! Go get your trophies, we can clone more!
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
Trump team cites wolf ‘de-extinction’ as reason to cut endangered species list
The interior secretary hailed a biotech company’s claim to have brought back the dire wolf, while the administration and GOP push to roll back species protections.
www.washingtonpost.com
April 11, 2025 at 2:10 PM
Oh FFS. One of the many reasons outlets need actual science journalists to report on science.
Reposted by Teresa Carr
How to leak to a journalist!
featuring a bunch of good advice from those who know: @marisakabas.bsky.social @amandabecker.bsky.social @jeffhorwitz.bsky.social @rmac.bsky.social @swin24.bsky.social @juliaangwin.com @benmullin.bsky.social & @maxtani.bsky.social
featuring a bunch of good advice from those who know: @marisakabas.bsky.social @amandabecker.bsky.social @jeffhorwitz.bsky.social @rmac.bsky.social @swin24.bsky.social @juliaangwin.com @benmullin.bsky.social & @maxtani.bsky.social
How to leak to a journalist
Planning to leak? Read these tips first.
www.niemanlab.org
April 2, 2025 at 6:46 PM
How to leak to a journalist!
featuring a bunch of good advice from those who know: @marisakabas.bsky.social @amandabecker.bsky.social @jeffhorwitz.bsky.social @rmac.bsky.social @swin24.bsky.social @juliaangwin.com @benmullin.bsky.social & @maxtani.bsky.social
featuring a bunch of good advice from those who know: @marisakabas.bsky.social @amandabecker.bsky.social @jeffhorwitz.bsky.social @rmac.bsky.social @swin24.bsky.social @juliaangwin.com @benmullin.bsky.social & @maxtani.bsky.social
Reposted by Teresa Carr
No one likes an unflattering photo or painting of themselves, which is why I went against the grain for my official portrait… #AprilFools
April 1, 2025 at 3:31 PM
No one likes an unflattering photo or painting of themselves, which is why I went against the grain for my official portrait… #AprilFools
"By God, I fulfilled my duty as a journalist. I risked everything to report the truth..."
RIP Hossam Shabat.
RIP Hossam Shabat.
March 24, 2025 at 9:09 PM
"By God, I fulfilled my duty as a journalist. I risked everything to report the truth..."
RIP Hossam Shabat.
RIP Hossam Shabat.
Apparently the autopen has become sentient and is acting of it’s own accord.
President Donald Trump downplayed his involvement in invoking the Alien Enemies Act of 1789 to deport Venezuelan migrants, saying for the first time that he hadn't signed the proclamation, even as he stood by his administration's move.
Trump says he didn’t sign proclamation invoking Alien Enemies Act | CNN Politics
President Donald Trump on Friday downplayed his involvement in invoking the Alien Enemies Act of 1789 to deport Venezuelan migrants, saying for the first time that he hadn’t signed the proclamation, e...
cnn.it
March 22, 2025 at 2:01 PM
Apparently the autopen has become sentient and is acting of it’s own accord.