Earth Notes: On Website Technicals (2026-08)

Updated 2026-08-06.
Tech updates: EOM, PDF for vector graphics...
Getting ready for the fourth+ 30°C+ heatwave(s) this year...

: Paper Review Updates

I am working on first-round updates/corrections to my paper currently in flight with a journal.

One improvement asked for by the editors and reviewers is higher figure quality. I take this to be both technical presentation/resolution and content/labelling, etc.

Many of the figures are gnuplot line graphs. For HTML pages I am now using SVG where possible because scalable and often much more compact than PNG, especially brotli-compressed. But pdflatex with which I am preparing this paper does not handle SVG, so initially I had reverted to PNG, but there are visible artefacts from the 640x480 pixel raster format used.

I have started to generate PDF output alongside SVG and PNG, as an alternative scalable vector format (ie without raster artefacts) that pdflatex does accept.

quarters 2025 refc1
Example (SVG) image with a new PDF variant.

I hope that this sufficiently addresses the technical issue for those graphs that I can easily regenerate from data. Some historic PNG snapshots (eg screenshots) may be harder to improve.

: End of Month Data Fun

I was away at a music festival for a few days and while obviously I logged in from my phone via ssh to commit the bulk of the EOM data, some parts of the ritual work better locally, while sober, maybe... I think everything is now done.

More carbon negative

Net electricity utility energy kgCO2e over the last 12 full calendar months: -64

Net kgCO2e for each of the last 12 full calendar months: -40 -8 11 27 42 52 28 -2 -22 -40 -52 -60

At 16WW over 367 days from 2025-08-01 to 2026-08-03: electricity import 3.1kWh/d (net -2.2kWh/d).

uptime

% uptime
 15:50:25 up 337 days,  3:21,  1 user,  load average: 0.39, 0.41, 0.44