1/ Electric Vehicles Keep Defying Almost Everyone’s Predictions

"There are now almost 30 million electric vehicles on the road in total, up from just 10 million at the end of 2020. E.V. market share has also tripled since 2020."

nytimes.com/2023/01/11/opi… by @dwallacewells
2/ "In 2020, the International Energy Agency @IEA [famous for its poor predictions] projected that the global share of electric vehicle sales would not top 10% before 2030. It appears we’ve already crossed that bar 8 years early"

[We need this to go fast to #EndFossilFuels]
3/ "We used to worry whether there would be sufficient demand for electric vehicles, particularly given their cost and range limitations"

"But demand already outstrips supply, which, in addition to driving up the cost of E.V.s and creating manufacturing and delivery delays"
4/ "The vast majority of EVs are now sold in the richer economies, and challenges like charging infrastructure are potentially much larger in lower income countries"

"But there, at least for now, the EV revolution is different: often 2 or 3 wheels rather than 4"
5/ But we need to go much faster:

"Economists call this a problem of stocks rather than flows. The “flows” are indeed impressive, but the “stock” of E.V.s on the road is probably only 2% of the global fleet, which still isn’t close to 100% at all"

assets.bbhub.io/professional/s…

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More from @jljcolorado

Jan 10
US federal agency considering a ban on gas stoves

"US Consumer Product Safety commissioner said gas stove usage is a “hidden hazard.” Any option is on the table. Products that can’t be made safe can be banned"

Would be great win for #IAQ #EndFossilFuels

cnn.com/2023/01/09/bus…
We have to get rid of gas turbines and home furnaces as fast as possible too (for climate reasons especially). But those ony pollute outdoor air, so we breathe 1000 times less of those exhausts vs. cooking stoves. Stoves are terrible for indoor pollution.

Electric induction cooks as well as gas and is much more energy efficient. And even if everyone switched, it is small in overall electricity consumption

NO reason to not get rid of cooking stoves already. Other than the pervasive influence of FF industry

Read 12 tweets
Dec 9, 2022
1/ Germicidal UV: a tradeoff between disinfection and indoor smog

A Substack (blog) post with a first estimate of the magnitude of the tradeoff.

TLDR: still uncertain, but GUV smog is likely to be a significant concern, needs to be carefully evaluated.

jljcolorado.substack.com/p/germicidal-u…
2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air quality impacts of GUV disinfection.

pubs.acs.org/doi/10.1021/ac…
3/ We know now that airborne transmission is the only important way in which COVID-19 spreads, and it is also important for the flu and other respiratory viruses.

Therefore, removing viruses from the air is important

thelancet.com/article/S0140-…

science.org/doi/10.1126/sc…
Read 16 tweets
Nov 24, 2022
1/ INTERCOMPARISON of AFFORDABLE HOME RADON SENSORS

[TDLR: they compare well]

Radon:
- invisible odorless radioactive gas
- Rises from ground & accumulates indoors
- 2nd leading cause of lung cancer
- EPA link for more background

epa.gov/radon

#TestFixSaveALife
2/ Radon is more of a problem in some places than others, depending on the rocks in the soil. Places with granite are worst. There are maps such as from EPA or Airthings.

November is lung cancer awareness month, EPA promotes hashtag: #TestFixSaveALife

radonmap.com ImageImage
3/ Radon in homes can be mitigated a limited cost:

- Put a plastic film over the ground
- And a fan that runs all the time (ours uses 75 W, not much). Sucks soil gas and expels outdoors.

#TestFixSaveALife

epa.gov/radon/radon-re… ImageImage
Read 18 tweets
Nov 10, 2022
1/ Las MASCARILLAS en los colegios FUNCIONAN

Estudio en @NEJM (revista médica TOP con @TheLancet)

Grafico traducido: ciudades del mismo estado, quitan mascarillas en diferentes momentos.

Doble de casos en ciudades SIN mascarillas q CON mascarillas en colegios Image
2/ Y esto es con mascarillas en su mayoría MEDIOCRES o POBRES como las que se han llevado en todos los colegios

El efecto sería mucho mayor si se hubieran llevado mascarillas de más calidad como KF94 o elastoméricas (e.g. flomask.com)

SI SE PUEDE!
3/ Hubo un estudio en España que concluyó lo contrario hace unos meses (tuvo mucha prensa interesada).

Pero era un estudio MUY POBRE: unas clases CON y otras SIN mascarilla en el mismo colegio. Los niños tienen hermanos, se contagian en casa o en otros sitios en la MISMA ciudad
Read 10 tweets
Nov 8, 2022
1/ Nuevo artículo en @Nature: 100% de 386 expertos de 112 países están de acuerdo: "SARS-CoV-2 es de TRANSMISIÓN AÉREA" (= por el aire, por aerosoles)

"Si Salud Pública NO DICE esto CLARAMENTE, está dando INFORMACIÓN FALSA" (92% de expertos)

#COVIDisAirborne

Detalles en🧵: twitter.com/i/web/status/1…
2/ Muchos más detalles sobre el masivo estudio DELPHI, dirigido por @JVLazarus de @ISGLOBALorg en Barcelona, en este hilo suyo o en el propio artículo (nature.com/articles/s4158…)

3/ Y el hilo sobre la transmisión aérea en español / castellano. (Lo puse en inglés en el tuit 1 por equivocación)

Read 4 tweets
Nov 7, 2022
Last week in @Nature: 100% of 386 experts from 112 countries agree: "SARS-CoV-2 is AIRBORNE"

"If Public Health doesn't say this clearly, it is FALSE INFORMATION" (92%)

From large DELPHI study w/ panel of 386 academic, health, NGO, govt experts in COVID-19

Details in🧵 below
There were lots of other areas of agreement in this DELPHI study, including the use of "vaccines plus" approach. So not just vaccines, but also NPIs non-pharmaceutical interventions) to reduce transmission, such as ventilation and filtration, high-filtration masks, isolation...
A lot more details of the overall @Nature DELPHI 386-expert 112-country study on "How to end the COVID-19 public health threat" in the posts from @JVLazarus. e.g.:

Read 5 tweets

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