Relentless climate change 2025
Here are the changes in temperature and atmospheric CO₂ concentration over recent decades (temperature: 85 years; CO₂: 67 years; Fig. 1). That is, CO₂ continues to accumulate in the atmosphere, and temperatures keep rising relentlessly. There is a strong correlation between global air temperature and CO₂ (Fig. 2). Obviously, CO₂ is not the only cause of increasing temperature; there are other greenhouse gases. Note also that the data series begin in 1940 (temperature) and 1958 (CO₂), although human-caused climate change began much earlier, around 1890 [1].
Data sources: Copernicus Climate Change Service (C3S) and NOAA Global Monitoring Laboratory
References
[1] Pausas JG 2025. The onset of phenological plant response to climate warming. New Phytol. 247: 2495-2498 [doi | pdf | post]