Flying insect numbers have plunged by 60% since 2004, British survey finds

A fly suns itself on a leaf in the woodlands. Insects are critical in maintaining a healthy environment, by recycling organic matter, pollination and controlling pests. Photograph: Geoffrey Swaine/Rex/Shutterstock

The number of flying insects in Great Britain has plunged by almost 60% since 2004, according to a survey that counted splats on car registration plates. The scientists behind the survey said the drop was “terrifying”, as life on Earth depends on insects.

The results from many thousands of journeys by members of the public in the summer of 2021 were compared with results from 2004. The fall was highest in England, at 65%, with Wales recording 55% fewer insects and Scotland 28%.