Instrument Record

Observational desk

One chart per question.

Instrument Record is a desk of published measurements: satellite and surface temperatures, CO₂, ice, snow, the Sun, and geological time. Toggle the product, the region, the smoother, and the baseline without leaving the figure.

A related observational archive is climate4you.com.

UAH TLT

0.48°C

UAH TLT globe · 2026-07

Mauna Loa CO₂

429.1ppm

Mauna Loa CO₂ · 2026-07

Arctic ice

7.7110⁶ km²

Arctic sea ice extent · 2026-07

Sunspots

78.10SN

Sunspot number · 2026-07

Global temperature — all products, one pane

UAH v6.1 · RSS TLT v4 · HadCRUT5 · GISTEMP v4. Re-baselined in the browser.

Raw · Both · Smooth
UAH TLT +0.158 °C/decadeRSS TLT +0.234 °C/decadeHadCRUT5 globe +0.205 °C/decadeGISTEMP v4 +0.209 °C/decade

Native baselines differ (UAH 1991–2020, HadCRUT 1961–1990, GISS 1951–1980). Switch “Baseline” to put them on the same zero. The 37-month mean is a three-year running average — long enough to blunt ENSO, short enough to keep the El Niño steps.

Paleoclimate history — 800,000 years

Bereiter 2015 Antarctic CO₂ · Jouzel 2007 EPICA Dome C. Present at right; shaded band is the Holocene.

Nested timescales →

Ice-age CO₂ stays inside ~170–300 ppm. The tick at the far right is Mauna Loa. Open Paleoclimate for the Holocene and 2,000-year zooms on the same archives.

Temperature

Quality classes, land/ocean, tropics and poles — one regional toggle instead of a wall of maps.

Atmosphere

Mauna Loa plus Law Dome: 2,000 years of CO₂ on one axis.

Ocean

Ocean troposphere, Niño, and the tide-gauge vs altimeter sea-level argument on one figure.

Ice

Arctic and Antarctic extent plus a seasonal envelope of every year on one clock.

Sun

SILSO sunspots since 1749 overlaid on tropospheric temperature.

Paleoclimate

800 kyr ice cores, Holocene, and Law Dome to Mauna Loa — nested, present at right.

Mechanism

Pressure, sunlight, albedo — then composition. Six worlds, SLP vs HadCRUT, CERES.

Companion desks

Same project, other questions.

They are not extra series on these charts — they are the arguments about ice versus stomata, the 20th-century blade, the ¹³C fingerprint, the 1988 polar forecasts, and what CERES actually attributes the last 26 years to.

Stomata vs Ice

Plant leaves keep a growing-season count of pores. Antarctic ice keeps bubbles of old air. Ice-core CO₂ is heavily smoothed; stomatal series still carry century-scale swings that only meet the ice at the instrumental splice.

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Hockey Stick Lab

Mann, Bradley & Hughes 1998 made a shaft-and-blade by overweighting the Sheep Mountain bristlecone (CA534) by as much as 390×. Strip that weight and the 1910–1938 climb is already there. Drag the weight yourself against HadCRUT5.

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δ¹³C Ledger

The “fossil isotopic signature” is not a raw intercept. Station Keeling plots sit near −13‰; the textbook −28‰ is an isoflux term after gravity, diffusion, blank and scale corrections. The ledger separates observation from the model step.

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Arctic and Antarctic vs the 1988 estimates

1988-era scenarios warmed both poles under well-mixed greenhouse gas. The split is not that: Arctic air rose; Antarctic did not. Sea-level rise since 1900 is expansion-scale, not a melt pulse matching those polar-ice forecasts.

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NZ Atlas

Nikolov & Zeller and Goessling, Rackow & Jung land on the same CERES fact: the last ~26 years of warming track absorbed sunlight from a falling planetary albedo. They split on story; the satellite number they both use is albedo, not CO₂ forcing.

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