The ageing of the global population is fast-moving. In Europe, the projections are that individuals aged 55 and older rise from approximately 35% in 2022 to around 40% of the total population by 2050 (Eurostat, 2020). Climate and sustainable actions should consider their participation and engagement. With accumulated life experiences, maturity, time, and knowledge, older adults can play a pivotal role in advancing a greener future, both at the individual and community levels.