Researchers just found that gas stoves are responsible for 12.7% of childhood asthma cases.

Recently I read dozens of studies about gas stoves and indoor air quality.

I also installed monitors in our home and ran my own tests.

Here's what I learned.
Researchers have been studying the link between indoor air pollution and human health for more than 50 years.

Every year, it becomes more clear:

Gas stoves produce unsafe levels of nitrogen dioxide (NO2). And that causes respiratory illnesses like asthma.
In Sept 2021, @WHO released their latest guidelines on indoor air pollution.

They recommended no building should have higher than 5.3ppb of NO2 on average throughout the year.

So I set up air quality monitors in my house to see if we passed the test.
Here's a chart showing the average level of NO2 throughout December.

The dotted line is the daily average. The top line is the peak concentration.

Our daily average hovered around 2x the WHO guidelines. Image
Can you guess which day we went out of the town and didn't use our gas stove, furnace or water heater?

Yup, it was the day that NO2 levels plummeted.
Here's what happened every night when we used our stove or oven.

291ppb of peak concentration is... not good.

And that's what it looked like whenever we made dinner.

The only exception: the nights we got takeout and didn't use the gas stove. Image
I asked @jlashk, an environmental epidemiologist to take a look at the data.

He said, "I would say you've got a pretty big NO2 problem."

Not exactly what you want to hear from someone who studies this stuff for a living.
NO2 is especially bad for children.

The first meta-analysis on this topic was published in 1992.

It found that for every 16ppb increase in NO2 levels — comparable to the increase resulting from exposure to a gas stove — the odds of respiratory illness in children go up by 20%.
In 2013 another meta-analysis on the topic came out.

This time the authors concluded, “Children living in a home with gas cooking have a 42% increased risk of having current asthma.”
And think about that for a second.

We've known that gas stoves cause asthma and other respiratory illnesses for 30 years.

Yet, in that same period millions of homes have been built with gas hookups.
The fact that we still allow these things in new construction is crazy.

Most building codes have nothing to say about gas appliances or NO2.

This is a failure of the @EPA and most state and city governments in America.
If I'm honest, I was skeptical of the panic over gas stoves at first. But in study after study that I read, the data showed the same thing.

Gas stoves aren't safe.
To read more and subscribe to my newsletter, you can click the link below.

Next week, I'm releasing an interview with one of the authors of the recent study that showed 650,000 asthma cases can be atttributed to gas stoves.…
If you want to support my work, you can become a paid subscriber to my newsletter by clicking the link below.

For $5 / mo you can make stories like this possible.
A lot of people asking about ventilation and range hoods.

There’s been a lot of research that suggests range hoods don’t actually reduce NO2 pollution. Still very important to use, but doesn’t solve the problems mentioned above.…
Another common question is what air quality monitor I used.

I used the uHoo. I believe it’s the only consumer grade option that measures NO2.

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More from @curious_founder

Jan 5
Recently I learned about a man who is trying to block offshore wind projects across the country.

To recruit people to join him, he sends letters to coastal residents, runs Facebook ads, and even flies aerial banner ads over the beach.

Here's his story.

David Stevenson has spent the last decade trying to slow the clean energy transition.

In 2018, he set out to fight the offshore wind industry.

But rather than use his typical methods of advocacy, he decided to change things up a bit.…
As the director of a conservative think tank, Caesar Rodney Institute (CRI), he usually produces boring reports. Then he sends those reports to lawmakers.

But by 2018, it was well-known that CRI, was a part of a nationwide political machine funded by the fossil fuel industry.
Read 13 tweets
Jan 4
A new study just found that 12.7% of childhood asthma is caused by gas stoves.

That's 647,000 children.

The gas industry has known about these risks for decades.

But they've spent millions lobbying and running misinformation campaigns to prevent regulation.
I'm just reading the study now, but will definitely be writing about this in my newsletter this week or next.

For years, researchers have known that there's some causality between gas stove use and asthma. But no one has quantified it in this way.
This could be the natural gas industry's "Big Tobacco moment", when policymakers finally wake up to the fact that we need to regulate gas stoves.

In the meantime, @bradytoday has a great summary of the study here:

Read 4 tweets
Jan 3
In 2005 Congress created a program to fund risky clean energy companies.

That program helped save Tesla from bankruptcy. It funded the first large-scale solar and wind farms.

Republicans plan to use their new House majority to paralyze the program.

The Loan Program Office (LPO) at the Dept. of Energy was created to solve a problem that has long plagued American innovation.

All across the country, government-funded labs invent breakthrough technologies. But very little of that technology makes it out of the lab.
One reason for this is what technologists and investors call the “Valley of Death.”

On one end of the valley you have the federal govt which spends billions on early R&D every year.

On the other end, you have private investors that invest billions in proven technologies.
Read 16 tweets
Dec 20, 2022
In 2021 researchers studied why people install solar panels on their roof.

Subsidies, geography, and policy all played a role. But the biggest factor was whether a neighbor already had them on their roof.

As @MJ_Coren puts it, solar panels are contagious.

One of the most tiring debates in the environmental community is whether individual or collective action is more effective.

But in my experience, the people closest to the work, rarely ask this question.

They know that individual action is collective action.
Every individual’s habits and beliefs are contagious. Whenever we do, say, or believe something we infect the people around us with our beliefs and habits.

If COVID-19 has taught us anything it is that one infection here or there doesn’t feel like much to any individual.
Read 9 tweets
Dec 17, 2022
I don't think most people know just how terrible meat is for the planet.
This isn't just about climate change either. Meat production is driving unprecedented species extinction.

Why? Because it requires so much land.
For those who want to learn more about the case for plant-based diets, I highly recommend this conversation between @richroll and @earthling_ed…
Read 4 tweets
Dec 16, 2022
Last week House lawmakers released hundreds of internal documents from fossil fuel companies like Exxon, Shell, etc.

The documents reveal how the industry lies to the public and continues to pollute the planet.

Here's what I learned reading through the documents:

In recent years, big fossil fuel companies like Exxon, Shell, BP and Chevron have announced lofty climate pledges.

They've run extensive ad campaigns promoting their investments in renewable energy.
From the outside, it might look like these companies are finally changing their ways after decades of climate denial.

But hundreds of internal documents from these companies show this isn't the case.

These companies are as committed as ever to climate obstruction.
Read 17 tweets

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