Claudia Sheinbaum, a climate scientist and former mayor of Mexico City, has been elected as Mexico's first female president, bringing scientific expertise to the role but facing challenges due to her ties with outgoing President López Obrador. Sheinbaum's campaign promises include a $14 billion investment in clean energy, focus on sustainable transportation, and long-term planning for energy and water sectors, but her platform also supports some fossil fuel projects. Key challenges for Sheinbaum's climate agenda include Mexico's economic reliance on fossil fuels, lack of a net-zero emissions target, and the need to balance environmental goals with political and economic realities.