Municipalities adhered to the Covenant of Mayors for Climate and Energy

Municipalities adhered to the Covenant of Mayors for Climate and Energy, a European initiative through which municipalities commit to reducing greenhouse gas emissions. The data set includes information on the dates of accession, both in the old pact and the new one, given that there are municipalities that have reaffirmed their commitment to more ambitious objectives.参与气候与能源市长盟约（Covenant of Mayors for Climate and Energy）的市政当局，该盟约为一项欧洲倡议，缔约市政当局承诺开展温室气体减排行动。本数据集收录了相关主体加入新旧两份盟约的具体日期——鉴于部分市政当局已重申其迈向更具雄心减排目标的承诺。