Climate change: Tropical species are most vulnerable to rising temperatures

Tropical species will be most at risk from rising temperatures as the discrepancy between physiological thermal limits and projected temperatures is highest in tropical regions, research shows. In contrast, a large part of mammal and bird species in temperate zones will find ambient temperatures in 2080 within their tolerance ranges. However, indirect effects of rising temperatures may counteract opportunities given by species’ physiological tolerances in temperate zones, researchers say.