"Brown, 2021" refers to a publication authored by Brown in the year 2021. This work focuses on the impact of climate change on biodiversity, exploring how shifting environmental conditions affect various species and ecosystems. The study emphasizes the importance of conservation efforts to mitigate these effects. In the publication, Brown presents data and case studies that illustrate the challenges faced by different habitats. The findings highlight the need for urgent action to protect vulnerable species and promote sustainable practices. Overall, "Brown, 2021" serves as a critical resource for understanding the relationship between climate change and biodiversity.