Due to the COVID-19 pandemic, the in-person school strikes were suspended in early 2020, but O'Connor recommenced them in July 2020.[8] In December 2020 O'Connor was part of a global group of 9 women and non-binary activists that published a letter to global leaders on Thomson Reuters Foundation News entitled As the Paris Agreement on Climate Change marks five years, urgent action on climate threats is needed now. The international group included Mitzi Jonelle Tan, Belyndar Rikimani, Leonie Bremer, Laura Muñoz, Fatou Jeng, Disha Ravi, Hilda Flavia Nakabuye and Sofía Hernández Salazar.[9]