Objective. We examined whether and how levels of environmental concern (EC) changed over time in the United Kingdom, from 1991Kingdom, from to 2008Kingdom, from -2009, as well as how EC relates to socioeconomic characteristics across this same timeframe. Methods. Using item response theory models on the last three sweeps of the British National Child Development Study 1958, we evaluated a measure of EC. Then, using latent growth curve models (LGCMs) we estimated the pattern of change for EC across time. Finally, theoretically relevant sociodemographic characteristics were introduced as covariates into the LGCM. Results. We found a small but significant downfall of the mean level of EC over time, with individual-level values displaying higher dispersion in 2008-2009 against the previous sweeps of data. We also found that political orientation has significant effects on the outcome and on its changes across time. Conclusions. Hypotheses regarding the influence of interest in politics and voting choices on EC are supported. The increasing variance of EC over time warrants further investigation. Scientific and societal attention to human-caused environmental problems started spreading worldwide in the early 1970s, following the publication of The Population Bomb (Ehrlich, 1968), The Limits to Growth (Meadows et al., 1972), Rowland and Molina's (1975) dissemination of their findings on the depletion of the ozone layer, and the 1973-1974 energy crisis (Buttel,