This study investigates the relationship between women directors and the environmental, social, and governance (ESG) disclosure scores of Canadian mining firms listed on the Toronto Stock Exchange (TSX) Composite Index over the period 2011-2022. The results show that women directors are associated with higher ESG disclosure scores overall, as well as within each individual ESG pillar (environmental, social, and governance). Notably, the environmental pillar exhibits the strongest link, whereas the governance pillar shows the weakest. To further explore the impact of women directors on the environmental pillar, we analyze their effect on firms' climate change policies. Our findings indicate that mining firms with greater percentage of women on the board are more likely to implement climate change policies. Our results contribute to the corporate governance literature on the determinants of ESG reporting in the mining industry, which is considered one of the most polluting sectors in Canada.