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Climate Change Threatens Plant Extinction by Century's End
3 Jun
Summary
- 18% of vascular plants at high extinction risk.
- Climate change shrinks plant habitats, not dispersal.
- Plant loss impacts ecosystems and human societies.
By the year 2100, climate change is expected to drastically reshape landscapes as numerous plant species face extinction due to shrinking habitats. Scientists estimate that between 7% and 16% of the world's vascular plants, accounting for approximately 18% of known species, could lose over 90% of their range.
Researchers highlight that the core issue is the reduction of suitable environmental conditions, not the plants' ability to disperse. This means strategies like assisted migration may not be sufficient to prevent widespread loss. Cold-adapted Arctic flora and species in dry regions like the western U.S. are particularly vulnerable.
The study also projects an increase in local plant diversity in some areas, leading to novel plant communities. However, this reshuffling of species poses risks. Plants are vital for terrestrial ecosystems, supporting carbon storage, soil stability, and wildlife. Their decline could intensify global warming through a feedback loop.
Ultimately, the protection of plant diversity is crucial for maintaining ecological systems that support human societies. Changes in plant cover can impact carbon absorption and ecosystem services, emphasizing the interconnectedness of climate, plants, and human well-being.
