The convention was planned to consist of six two and a half day sessions, spanning October 2019 to February 2020 taking place every third week. Ultimately, the convention consisted of seven sessions, beginning on-schedule in October 2019, but ending in June 2020. The fourth session was initially delayed by the
2019-2020 Pension Reform Strike, which closed public transportation. The session was primarily focused on defining and clarifying the mission of the assembly. First, the assembly spoke with paleoclimatologist Valérie Masson-Delmonte and Director General of the Institute for Climate Economics Benoit Leguet, then the governance committee presented and took questions. After summarizing their progress from the first session, the members debated greenhouse gas emissions reductions targets and how to achieve them. Much of the work during this session was held in the 5 working groups established in the first session. Many called for increased visibility and awareness, along with greater citizens' participation. In total, over 60 experts spoke with the convention over the course of the weekend. Many of these meetings were contained in one working group, with each working group meeting a collection of experts simultaneously, but journalist and environmental activist
Nicolas Hulot, at the request of the members, spoke individually to the whole group to describe his vision of the convention. The entire convention also heard from the team of impact assessors. Each day of the convention opened with over three hours of work within each of the thematic groups, accompanied with parallel meetings of "the squad", which was supposed to resolve differences between proposals of different committees but was disbanded after this session. At the end of the session, the committee members began writing the final proposal based on the recommendations of the working groups. When asked by a sixteen year old member of the convention whether he thought the future of democracy was more deliberative like the convention, he responded "At the same time that we invent deliberative democracy, we need to restore representative democracy." After finalizing the proposals and creating the presentations, the committee questioned experts on the specific proposals of each working group. The convention then split into groups which they called "îlots" (small islands), composed of members of each working group. They then discussed a number of issues including legislative, regulatory, and referendum-based implementation methods, constitutional amendments, and financing. They also read an official statement to be delivered to the French public. On Saturday morning, the convention debated and voted on the food group's proposal. After agreeing to 149 provisions, == Proposals ==