Science

Scientists reveal the staggering number of bat deaths at wind turbines

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 27/10/2026, 15:40:24 UTC.

Briefings

A comprehensive study published in the Proceedings of the National Academy of Sciences estimates that over 18 million bats died at wind energy facilities between 1981 and 2024. This figure represents the most extensive analysis of bat mortality at wind turbines in the United States, highlighting a significant environmental cost of renewable energy infrastructure.

Key points

• The study identifies 18 million bat deaths across the United States at wind energy facilities.
• The data covers the period from 1981 to 2024, representing a 43-year timeframe.

Context

This research addresses a major threat to avian and mammalian biodiversity, specifically focusing on the collision mortality rate of bats at wind turbines. The findings are critical for understanding the ecological impact of wind energy development on wildlife populations.

Limitations

The evidence is limited to the United States and relies on a single study published in a peer-reviewed journal. The data covers a 43-year period with no specific location details beyond the national scope, and the study does not account for all possible causes of bat death.

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