Global CO2 Emissions V1

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Global CO2 Emissions V1

✓ Published2🌍 Public

Last edited Oct 2, 2025

Created on Oct 1, 2025

This choropleth map visualizes global CO2 emissions by country from 1850 to 2023, with darker reds representing higher emission values. A slider lets users scrub through years, updating country fill colors dynamically. The visualization uses React for state management, D3’s `geoNaturalEarth1` projection with `geoPath` for rendering world geography, and `sliderBottom` from `d3-simple-slider` for the year control. Data comes from a CSV subset of the Our World in Data CO2 dataset, with countries lacking data shown using a diagonal slash pattern.

AI-generated description

This is the visualization of CO2 emissions per year for a each country. The more red a given country is, the greater the emissions are. This is the link to the dataset: https://github.com/owid/co2-data?tab=readme-ov-file

I took a sub set of the data so that it was simplified. I intend to add a key and tool tips in the future.

MIT Licensed

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