Greenhouse gases concentrations
Concentrations of carbon dioxide (CO2), methane (CH4), and carbon monoxide (CO) are shown from observations at Pallas-Sammaltunturi, Sodankylä, Helsinki-Kumpula, and Utö.
Long-term trend (daily averages), the latest seasonal cycle and the latest 14 days (hourly averages) are depicted. Black line is smoothed data with short term cutoff of 60 days.
Pallas - Sammaltunturi
Helsinki - Kumpula