As the COP30 climate talks kick off in Belém, Brazil, we showcase the women at the forefront of the fight against the climate crisis; a struggle that continues to affect women and children disproportionately. According to the UN, climate change could push up to 158 million more women and girls into poverty by 2050 – 16 million more than the number of men and boys. Annette Young speaks to climate activist Camille Étienne, often described as the "French Greta Thunberg", as she and her all-female crew sail to Brazil for this crucial summit. We also meet Vanda Witoto, an Indigenous climate activist from the Brazilian Amazon, and Binta Wane in Senegal, who is transforming wastelands into thriving vegetable gardens.