Satellite temperature records and warming

The claim

Claim: satellites prove cooling or are secretly manipulated. They measure atmospheric layers, not surface temperature, and require orbital correction. This file tests the narrow allegation rather than treating secrecy, coincidence, or public controversy as evidence by themselves.

Chronology

Microwave sounding began in 1979; RSS and UAH reprocess data as satellites drift and instruments change. Chronology helps separate contemporaneous knowledge from later interpretation; sequence alone cannot establish a causal relationship.

Primary record and data

Raw radiances, methods, radiosondes, and surface data permit comparison; teams publish differing estimates. Original records establish what was measured or decided, while independent work is needed to test methods and institutional conclusions.

Independent scientific evidence

Satellite records show long-term tropospheric warming and stratospheric cooling, consistent with layer-specific physics. Convergent observations and a plausible mechanism carry more weight than a single image, anecdote, or disputed quotation.

Alternative explanations

The record is short and calibration complex; differences among teams do not prove coordinated fraud. A strong alternative must explain the observations and remain open to disconfirmation; ordinary causes deserve the same scrutiny as extraordinary ones.

Limitations and uncertainty

Long records include coverage changes, instrument uncertainty, and methodological choices; independent datasets and explicit uncertainty ranges help bound conclusions. Uncertainty is stated explicitly rather than treated as support for the strongest version of a claim.

Calibrated verdict

Satellite data do not overturn surface and ocean evidence; estimates of rate carry uncertainty. Documented research, emissions, negligence, or secrecy should not be conflated with a broader unsupported coordinated plot.

Testable evidence requirements

Compare radiances, radiosonde overlaps, corrections, and independent products across the entire record with error budgets. A persuasive claim specifies what new evidence would change the assessment and allows independent replication, including negative results.

Sources and source limits

1. NOAA NCEI, Global Climate at a GlancePrimary observation series and methods.
2. IPCC Sixth Assessment Report, Working Group IMulti-author synthesis assesses climate evidence and uncertainty.
3. NASA GISS, Global Temperature AnalysisPublished surface temperature series suitable for independent comparison.