Climate Datasets — Optics, Curvature & Chromatics

The baseline anomaly against which every mitigation claim is measured — gridded observational products referenced to a fixed preindustrial climatology.

Six decades of continuous Keeling-curve measurement, traceable to the WMO mole-fraction scale and anchored in ice-core paleorecords.

Altimetric global mean sea level with its acceleration term — thermal expansion and ice-mass loss resolved as separate contributions.

Ice-sheet and glacier mass balance from gravimetry, laser altimetry, and InSAR — three independent pillars plus the albedo feedback.

Attribution of heat, precipitation, drought, and cyclone extremes: how return periods bend as the distribution shifts.

Intensification of the water cycle — evaporation, moisture transport, and precipitation asymmetry between wet and dry regions.

Biosphere response: range shifts, phenology, and biodiversity loss read as a spectral and seasonal signature.

Remaining carbon budgets and net-zero pathways — the quantified trajectory that mitigation claims must curve onto.