this post was submitted on 01 Jun 2024
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

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submitted 6 months ago* (last edited 5 months ago) by dallen to c/[email protected]
 

I wanted to share a small project I've been working on. The goal was to make the data from NASA's Landsat Thermal Infrared Sensor more accessible to the general public.

I worked with the raw temperature band data to general annual maximum surface temperature raster images for large urban areas covered by the Eurostat GISCO Urban Audit. In the browser, these images are transformed into easier to interpret isotherm contours with some adjustable settings.

I don't have a specific target audience in mind. The map could help identify areas of refuge for the warmer months, or overheated neighborhoods to avoid as we march towards a toasty future.

Feedback is welcome :)


EDIT: For UK visitors, sorry to leave you with an empty map...

I've taken a look at older urban extent data and found the geometry I need to process the UK (from before leaving Eurostat). However, there are still some UI limitations to overcome since it seems that cities are split into many boroughs that could only be viewed one at a time. The reason I went with the Eurostat dataset to begin with was a nice delineation of what a city was (for the purposes of this project).

Don't have a timeline, but I do want to add the UK and automatic loading of cities as you pan!

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[–] [email protected] 5 points 5 months ago (1 children)

Interesting project!

Seems to be giving an error on both Firefox mobile and desktop, but I was able to use it on Chrome.

Firefox error page:

[–] dallen 4 points 5 months ago* (last edited 5 months ago) (1 children)

Do you mind sharing the OS? This was developed on Firefox (Debian & iOS).

I don’t know if your WebGL is working correctly but I could try to add a check (and thus a more graceful failure mode).

Thank you for the report!

[–] [email protected] 2 points 5 months ago* (last edited 5 months ago)

The errors occurred on standard Firefox running on Windows 10 LTSC, and for mobile on Graphene OS using mull, a hardened version of Firefox mobile.

Both were using ublock origin and localCDN extensions.