Blog
Tutorials, analyses, and use cases for working with climate and air quality data.
ESG Ratings Are Self-Reported. Satellite Data Isn't.
We cross-referenced the NO₂ emission trend at the primary production facilities of 6 European industrial companies against their 5-year stock returns. The signal is stronger — and more honest — than any ESG score.
Pollution as a Proxy: How NO₂ Data Predicts Industrial Output
Hedge funds already use satellite imagery as alternative economic data. NO₂ from Copernicus CAMS offers an even cleaner signal — hourly, global, 11 years deep. Here's the financial case, with charts.
Stop Fighting the Copernicus CDS API — Use This Instead
The CDS API is powerful but brutal to work with: 10-minute queue waits, multi-GB NetCDF downloads, and 30 lines of boilerplate before you see a single number. Here's a better way.
10 Years of Air Pollution in Europe: What the Data Actually Shows
Using a decade of Copernicus CAMS reanalysis data, we tracked NO₂ and PM2.5 trends across Paris, London, Berlin, and Warsaw — including the dramatic dip during COVID lockdowns and what happened after.
How to Build an Air Quality Risk Score for Any Address (ESG Use Case)
Institutional investors and lenders increasingly need location-level environmental risk data. Here's how to build a defensible, multi-year air quality score for any portfolio of assets in under 20 lines of Python.