Women are particularly affected by global warming. This is why gender issues have also been discussed at UN climate conferences for several years. However, at COP29, these issues could be further marginalized. The Arab group of states, Russia and the Vatican oppose an update of the so-called Lima Work Program on Gender. In the current negotiations on a continuation of the work program, they even want to regress linguistically behind ten-year-old agreements. This would have tangible consequences for women and other disadvantaged groups. They could be more marginalized in UN climate diplomacy instead of being further integrated.