Genaue Daten einzelner Messtationen
findet Ihr auf der Seite des
World Data Center For Greenhouse Gases (WDCGG)

http://ds.data.jma.go.jp/gmd/wdcgg/wdcgg.html

Hier etwa die Datenreihe für die CO2-Konzentration der
letzten 10 Jahre gemessen am Ochsenkopf in Bayern:

Eine gute Datenquelle zum Klimawandel

findet Ihr hier

https://www.carbonbrief.org/data-dashboard-climate-change

"Carbon Brief is a UK-based website covering the latest developments in climate science, climate policy and energy policy. We specialise in clear, data-driven articles and graphics to help improve the understanding of climate change, both in terms of the science and the policy response. We publish a wide range of content, including science explainers, interviews, analysis and factchecks, as well as daily and weekly email summaries of newspaper and online coverage."