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Copernicus Climate Change Service (C3S)

Authoritative open data on past, present, and future climate

Addresses
Climate Data
Cost
Free to use
Proprietary-Free
Difficulty
Intermediate
Language
—
Updated
2024

You provide

  • Variable of interest
  • Region / bounding box
  • Time period
  • Scenario (RCP/SSP)

You get

  • ERA5 reanalysis (1940–present)
  • CMIP6 climate projections
  • Urban climate indices
  • Sectoral indicators

Overview

The Copernicus Climate Change Service is the European Union’s official climate intelligence service, operated by ECMWF. It provides free, open access to high-quality climate data, projections, and indicators cities can use to understand current and future risk.

Key features

  • ERA5 global reanalysis: hourly climate variables from 1940 to present (~31 km)
  • CMIP6-based multi-model projections with RCP/SSP scenarios to 2100
  • Pre-computed urban indices (cooling degree days, heat-wave frequency, extreme precipitation)
  • Climate Data Store (CDS) API and in-browser toolbox

Who it’s for

Climate scientists, municipal planners, and researchers needing reliable baseline and future climate data.

Getting started

Register for free at the Climate Data Store to access datasets and the Python/R client; the CDS Toolbox processes data in-browser.

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