But Isn’t Stove Gas Methane?

Space News reports:

The fully stacked Starship vehicle, consisting of a Super Heavy booster designated Booster 7 and a Starship upper stage named Ship 24, was filled with liquid oxygen and methane propellants during the test at SpaceX’s Starbase test site in Boca Chica, Texas.

Emphasis added. How did this ever pass environmental review?

<science>It passed because methane is a cleaner burning fuel than the RP-1 kerosene used in most other rockets, including the SpaceX Falcon series.</science>

<engineering>While liquid methane is very cold, its temperature is much warmer than the liquid hydrogen used in NASA’s SLS. It’s in the same range as liquid oxygen, so the thermal stress in the rocket’s plumbing is less severe.</engineering>

Safe Cooking

According to a report published on the National Institutes of Health website, there is an association of cooking over an open flame and asthma, but the effect depends upon which fuel is used. The report’s abstract states:

Background: Indoor air pollution from a range of household cooking fuels has been implicated in the development and exacerbation of respiratory diseases. In both rich and poor countries, the effects of cooking fuels on asthma and allergies in childhood are unclear. We investigated the association between asthma and the use of a range of cooking fuels around the world.

Methods: For phase three of the International Study of Asthma and Allergies in Childhood (ISAAC), written questionnaires were self-completed at school by secondary school students aged 13-14 years, 244,734 (78%) of whom were then shown a video questionnaire on wheezing symptoms. Parents of children aged 6-7 years completed the written questionnaire at home. We investigated the association between types of cooking fuels and symptoms of asthma using logistic regression. Adjustments were made for sex, region of the world, language, gross national income, maternal education, parental smoking, and six other subject-specific covariates. The ISAAC study is now closed, but researchers can continue to use the instruments for further research.

Findings: Data were collected between 1999 and 2004. 512,707 primary and secondary school children from 108 centres in 47 countries were included in the analysis. The use of an open fire for cooking was associated with an increased risk of symptoms of asthma and reported asthma in both children aged 6-7 years (odds ratio [OR] for wheeze in the past year, 1·78, 95% CI 1·51-2·10) and those aged 13-14 years (OR 1·20, 95% CI 1·06-1·37). In the final multivariate analyses, ORs for wheeze in the past year and the use of solely an open fire for cooking were 2·17 (95% CI 1·64-2·87) for children aged 6-7 years and 1·35 (1·11-1·64) for children aged 13-14 years. Odds ratios for wheeze in the past year and the use of open fire in combination with other fuels for cooking were 1·51 (1·25-1·81 for children aged 6-7 years and 1·35 (1·15-1·58) for those aged 13-14 years. In both age groups, we detected no evidence of an association between the use of gas as a cooking fuel and either asthma symptoms or asthma diagnosis.

Interpretation: The use of open fires for cooking is associated with an increased risk of symptoms of asthma and of asthma diagnosis in children. Because a large percentage of the world population uses open fires for cooking, this method of cooking might be an important modifiable risk factor if the association is proven to be causal.

Funding: BUPA Foundation, the Auckland Medical Research Foundation, the Health Research Council of New Zealand, the Asthma and Respiratory Foundation of New Zealand, the Child Health Research Foundation, the Hawke’s Bay Medical Research Foundation, the Waikato Medical Research Foundation, Glaxo Wellcome New Zealand, the NZ Lottery Board, Astra Zeneca New Zealand, Hong Kong Research Grant Council, Glaxo Wellcome International Medical Affairs.

Note the finding of no evidence of an association between the use of gas as a cooking fuel and either asthma symptoms or asthma diagnosis.

The report was originally published in Lancet Respir Med in 2013.

But It’s OK When They Do It

Joe Biden is in the US Virgin Islands for a year end vacation, so the omnibus funding bill is being flown from DC to St. Croix so he can sign it. Several tonnes of carbon will be emitted because of his vacation schedule.I’ll worry about the carbon footprint of my VW diesel as soon as … oh, never mind.

Thermodynamics Wins

According to OilPrice, a wind farm in Germany will be dismantled to make room for an expansion of an open-pit lignite coal mine. One wind turbine is already being torn down. The German energy company RWE says that lignite, or brown coal, has been mined from the coalfields for over 100 years.

The company also said that three of its lignite-fired coal power plants that had been on standby would return to the grid. Each plant has a capacity of 300 megawatts.

BTW, wind mills, whether modern turbines or not, are not a source of renewable energy. How does one renew the wind? They are an archaic, intermittent source.

Don’t Know Much Biology

When Dr. Bhavik Kumar of Planned Parenthood testified before a Congressional committee, he was asked if men could become pregnant and give birth. He replied, “Men can have pregnancies, especially trans men.”

OK, if a women pretending to be a man (a “trans man”) were fertile, she could become pregnant. However, Kumar’s use of the qualifier especially implies that there are other “men” who could become pregnant in addition to those with XX chromosomes.

Evergreen—

Don’t Know Much Biology

An online survey conducted by WPA Intelligence last month found 22% of Democrats agreed with the statement, “Some men can get pregnant.” 36% of white, college-educated female Democrats concurred.

Perhaps the fertility problems some “men” are having may be one of the sources of dissatisfaction some social and behavioral “science” graduates (especially, gender studies majors) feel about their degrees.Democracy Dies in Derpness™

Don’t Know Much Biology—Or English Vocabulary

Politico has a story up headlined Data brokers resist pressure to stop collecting info on pregnant people.

Perhaps someone should remind (or inform) the staff at Politico that only sexually mature human beings with XX chromosomes have the bodily organs required to gestate a baby, i.e., to be pregnant. In the English language such humans are called “women.”