Green History UK

2005: <a href="https://allouryesterdays.info/2022/12/20/december-21-2005-us-activist-william-rodgers-commits-suicide/" target="_blank">US activist William Rodgers commits suicide
1993: <a href="https://allouryesterdays.info/2023/12/20/december-21-1993-european-union-agrees-to-ratify-unfccc/" target="_blank">European Union agrees to ratify UNFCCC

Links to All Our Yesterdays site for events that happened on this day in (Green) History

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