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David Ho
@davidho.bsky.social
Climate scientist; ocean carbon cycle and climate solutions. Founder, Bamboo Bike Project; Co-founder and Chief Science Officer, @cworthy.bsky.social; Professor, University of Hawaiʻi at Mānoa. linktr.ee/david_ho
14.6k followers914 following3.3k posts
DHdavidho.bsky.social

Behold air quality stripes; like climate stripes, but for the stuff that kills you directly. The visualization shows how much clean air legislation, moving away from coal, and generally not setting carbon on fire improve air quality and reduce excess deaths. airqualitystripes.info/stripes/?con...

This is a graph depicting air pollution (PM2.5 concentrations) in London, UK, from 1850 to 2021. It includes a color-coded scale indicating levels of air quality, ranging from "Extremely Poor" to "Very Good." There's also a white line that shows the same information. The air quality level in London has been gradually getting worse since the start of the Industrial Revolution, improving drastically in the 1970s and continuing to the present day.
This is a graph depicting air pollution (PM2.5 concentrations) in Delhi, India, from 1850 to 2021. It includes a color-coded scale indicating levels of air quality, ranging from "Extremely Poor" to "Very Good." There's also a white line that shows the same information. The air quality was already quite poor since the industrial age, and has gotten significantly worse starting in the 1970s and is now extremely poor.
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CLcelestelabedz.bsky.social

LA's is also a cool one to see! My mom said that when she visited there in the 80's, it was absolutely putrid with smog, so she was relieved that it was better by the time I moved there for grad school.

Air quality graph for Los Angeles, showing "fair" readings in the late 1800s that rise up to "poor" around 1900, and fall down to "fair" again by the 2000s.
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📌

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Sshapednoisae.bsky.social

WOW: thats… terrifying. meanwhile…

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MPpeiferlabunc.bsky.social

Very interesting!! I wish it had more cities in the US--striking that LA, known as a US hotspot for smog, never hit the levels of London

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Ngreasyboiler.bsky.social

bloody hell what's going on in Riyadh

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CKckoven.bsky.social

pretty funny that the only three cities available for the US are: DC, LA, and Fairbanks.

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Iinfopointa.bsky.social

📌

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PAaltagliabue.bsky.social

Very interesting - thanks!

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RUleedstours.bsky.social

For this post especially, I wish there were a 🖤 option.

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JRjjs.business

A friend of mine who lived through Ireland’s coal ban said it really was like waking up one day and being able to see the sky for the first time. It all just went away. I think about that a lot

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DH
David Ho
@davidho.bsky.social
Climate scientist; ocean carbon cycle and climate solutions. Founder, Bamboo Bike Project; Co-founder and Chief Science Officer, @cworthy.bsky.social; Professor, University of Hawaiʻi at Mānoa. linktr.ee/david_ho
14.6k followers914 following3.3k posts