London's Butterflies Face Potential Crash After Drought-Stressed Summer

Butterfly Conservation is sounding the alarm for London's butterfly populations after this summer's extreme weather. According to Professor Richard Fox, head of science at Butterfly Conservation, a good summer for adult butterflies does not necessarily translate to a healthy population overall.

While many butterfly species were spotted in abundance due to the hot and sunny conditions, the charity warns that drought-stressed caterpillars could be emerging as adults next year, leading to a potential population crash. The UK's National Drought Group declared over 70% of England in drought this August, following the Met Office's announcement that 2026 was the hottest summer on record.

Butterfly Conservation is calling on residents to take action to help caterpillars and, in turn, butterflies and moths. The charity suggests planting more trees and shrubs, setting up water butts, and leaving grass patches uncut as simple 'drought-proofing' measures. These steps can make a significant difference for butterfly populations, which have already declined by 80% since the 1970s.

Professor Fox emphasizes that climate breakdown will only exacerbate these issues, making it essential to take proactive steps now. With increasingly hot and dry summers predicted, some species may be pushed towards extinction due to their lack of resilience.