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# Windshield phenomenon
- URL: https://cetialphafive.com/windshield-phenomenon/
- Published: 2020-12-26T22:12:53.000Z
- Updated: 2023-04-15T04:39:09.000Z
- Description: The windshield phenomenon (or windscreen phenomenon) is the observation that recently fewer dead insects accumulate on the windshields of people's cars.
- Author: fC
- Tags: climate, #Import 2026-07-18 00:18

The **windshield phenomenon** (or **windscreen phenomenon**) is the observation that recently fewer dead insects accumulate on the windshields of people's cars. It has been attributed to a global [decline in insect populations](https://en.wikipedia.org/wiki/Decline%5Fin%5Finsect%5Fpopulations?ref=cetialphafive.com) caused by human activity.[\[1\]](https://en.wikipedia.org/wiki/Windshield%5Fphenomenon?ref=cetialphafive.com#cite%5Fnote-1)

A 20-year study measured the number of dead insects on car windscreens on two stretches of road in Denmark from 1997 until 2017\. Adjusted for variables such a time of day, date, temperature, and wind speed, the research found an 80% decline in insects. A parallel study using sweep nets and sticky plates in the same area positively correlated with the reduction of insects killed by car windscreens.\[10\]