Log – 2025 December – Update
Updated °C Milestones – From First Appearance to Permanence with the 2025 data
Added update to Errata page. Minor typo in Warming Tapestry , and I’m a bit suspicious of the +0.71C number in Global Warming Baseline Adjustments for Nasa GISS data.
Log – 2025 December – Update to Spiral Warming
Updated Spiral of Global Heat with the latest data (up to mid December 2025) and posted to BlueSky.
Log – 2025 November – CO2 (ppm), Warming Stripes, Conferences
CO2 – Global Warming Stripes – Conferences – Following a request on BlueSky from Tadzio Mueller (requested out to the internet in general), I made an update to this classic graphic.
Log – 2025 November – Longest Running Average
To mark the 3-year-running average crossing 1.5C (Copernicus and Berkeley Earth data), I added Longest Running Average graphic, which shows what the longest running average is for 1.5C on any date, and also for other global warming milestones
I have been posting updates to the other graphs over the year. E.g.
- 1000 Days above 1.5C before Trend passes 1.5C?
- Warming Tapestry Percent Days Over Milestone
- °C Milestone Counts – Days – Months – Trend
Log – 2024 November – Global Heating Spiral
Added Spiral of Global Heat graphic video, and posted to BlueSky and TwitterX
Log – 2024 October – Graphic – Shifting Seasons
Added Globally Shifting Seasons graphic video, and posted to BlueSky and TwitterX
Log – 2024 October – Move to Loess Smoothing
While comparing my work to that of others, I started to notice that “Loess” was a popular smoothing technique. I had come up with my own smoothing technique which wasn’t ideal and wasn’t great at the start/end of the trend line. Also I was labelling it pretty poorly.
I have updated all the graphics and analysis to use Loess (with a 30 year window of data).
See post: Improved Smoothing Function – Loess – which points to the older graphs
Log – 2024 September – Record Warmest Days through time
Posted Hottest Days On Record Through The years to BlueSky and TwitterX
Log – 2024 September – Warming Tapestry
Posted Warming Tapestry Percent Days Over Milestone to BlueSky and Twitter|X
Log – 2024 August – Created Blue Sky account
I seem to have followed a trend in UK to move to BlueSky: @ReesCatOphuls.bsky.social
Log – 2024 April -5th
@EliotJacobson kindly posted on X, my second graphic: 1000 Days above 1.5C before Trend passes 1.5C?
Log – 2024 – March
Got properly taken out by covid. … Turned out to be ongoing for many months.
Log – 2024-April-1st
Website went live. Mostly to host explanations of the graphics I post on Twitter, under handle @ReesCatOphuls
Log – 2024-Feb-20
@EliotJacobson kindly posted on X, my first graphic: °C Milestones – From First Appearance to Permanence