「全球氣候與能源市長聯盟」（Global Covenant of Mayors for Climate and Energy）在官網將台灣加入聯盟的城市國籍（6都）都改為「中國」，引發高雄市長陳其邁不滿，率先在臉書揭露消息，並向其提出抗議，要求更正國籍。外交部在稍早也表態拒絕遭受矮化，表示嚴正抗議，已透過相關駐館，要求該組織依據我方成為會員時的遞交文件名稱予以更正。
隨後其他5都市府都相繼表明，拒絕接受矮化，晚間更聯合發表「針對氣候及能源市長聯盟對台灣六城市之註冊名稱聲明稿」中英文聲明，向氣候及能源市長聯盟祕書長表達強烈抗議，要求聯盟更正錯誤恢復原先國籍，否則不排除退出。
針對氣候及能源市長聯盟對台灣六城市之註冊名稱聲明稿
此致氣候及能源市長聯盟秘書長：
首先感謝貴聯盟提供平台，讓台灣六城市能夠呈現關於減排與能源轉型的努力成果，在聯合國永續發展目標的前提下，攜手為世界的未來盡一份心力。
然而，台灣六城市自加入貴聯盟以來，從來就不是中國的一部分。對於本次註冊名稱遭到片面更改，列入中國的一部分，台灣六城市拒絕這項矮化的行為，拒絕被列入「中國的城市」。
台灣六城市強烈要求，請貴聯盟立即停止這項錯誤行為，並將我方城市之註冊名稱，更改回原始註冊名稱。
若貴聯盟無正面回應與行動，台灣六城市將不排除退出貴聯盟，以捍衛我方權益。
Sustainable Taiwan, sustainable world. 地球永續不應矮化台灣。平等、互惠、尊重，是國際合作的基本原則，我方希望能繼續維持和貴聯盟良好的參與經驗，並繼續為全球永續努力。
聲明連署人
高雄市長陳其邁
台南市長黃偉哲
台北市長柯文哲
新北市長侯友宜
桃園市長鄭文燦
台中市長盧秀燕
Statement on the registered names of the six cities in Taiwan by the Global Covenant of Mayors for Climate & Energy
To
Secretary General of the Global Covenant of Mayors for Climate & Energy
First of all, six of Taiwan member cities thanks GCoM for providing a platform to enable us to present results of our efforts in emission reduction and energy transformation, and work together to contribute to the future of the world under the United Nations sustainable development goals.
Cities in Taiwan have never been part of China since they joined the GCoM alliance. In regards to the one-sided change of the registered name and made them part of China. The six cities in Taiwan refuse this dwarfing behavior and rejected to be included under the "City of China."
The six cities in Taiwan strongly request that your alliance immediately fix the website and change the registered names of our cities back to the original registered Nationality.
If your alliance has no positive response and actions, the six cities in Taiwan will withdrawal from your alliance in order to defend our rights and interests.
Sustainable Taiwan, sustainable world. The sustainable world should not dwarf Taiwan. Equality, reciprocity, and respect are the basic principles of international cooperation. We hope that we can continue to maintain our good experience in participating in the alliance and continue to work for global sustainability.
Statement cosigners
CHEN, CHI-MAI, Mayor of Kaohsiung City
HUANG, WEI-CHE, Mayor of Tainan City
KO, WEN-JE, Mayor of Taipei City
HOU, YOU-YI, Mayor of New Taipei City
CHENG, WEN TSAN, Mayor of Taoyuan City
LU, XIU-YAN, Mayor of Taichung City
