Recent research published in Nature Ecology & Evolution warns that by 2085 more than one‑third of terrestrial wildlife habitats could face multiple extreme weather events if global warming continues on its present trajectory. The study, led by the Potsdam Institute for Climate Impact Research (PIK), examined 34,000 vertebrate species under a medium‑high emission scenario.
Key Findings
- By 2050, 74% of animal habitats on land are projected to experience heatwaves, 16% to face wildfires, 8% droughts and 3% floods.
- Hotspots such as the Amazon, tropical Africa and Southeast Asia will see the sharpest rise in event frequency.
- Native species are generally more vulnerable than non‑native species, and repeated events compound biodiversity loss.
- Some species may gain short‑term benefits; for example, the ornate chorus frog faces reduced predation during droughts.
Important Statistics & Concepts
The study links rising heatwaves to habitat degradation, while the Climate Risk Index (CRI) places India at 9th globally for disaster impact over the past 30 years. According to the IPCC, a 1 °C rise in average temperature allows the atmosphere to hold ~7 % more moisture, intensifying precipitation and storm severity.Natural climate variability—such as El Niño and La Niña—complicates attribution of single events to climate change, but modelling shows that a warming world makes such events more likely and more intense.
Exam Relevance
Understanding the nexus of climate change, biodiversity loss and disaster risk is essential for GS 1 (Environment) and GS 3 (Economy). The data illustrate how cl