Climate change is causing a decrease in diversity among woody plants in the Atlantic Forest in Brazil. By studying over 2,000 plant species, researchers found that while local richness is increasing, overall diversity is decreasing over time. Severe climate change scenarios are leading to more similarity among plant species across different areas, which could result in a loss of unique plant species. The expansion of generalist species is outpacing the extinction of local endemics, leading to a potential homogenization of plant species in the region. This could have negative impacts on biodiversity and conservation efforts in the future.