The only jarring note in this book comes in an unconvincing section entitled ‘climate change and butterflies’ found at Page 245, almost as an afterthought. The authors remind us of the increase in data collection, the majority by amateur enthusiasts over recent decades, that has resulted in a huge database of records and information. The text speculates upon the future of butterflies in a number of paragraphs that contain supposition around ‘may have’, 'may be’ or ‘may also result’ when discussing changes to climate on butterfly populations, food plants, life cycles, and numbers of, etc.
The authors quote zero scientific evidence on which to base their vague claims. Nor do they address or reflect upon the many opposing and quite legitimate opinions that climate change is part of a long-standing cyclical variation of global weather going back billions of years, variations that butterflies have survived.
The UK continues to build over large swathes of green land to accommodate a population due to rise to 70 million. If we continue to overpopulate while employing tons of insecticides and pesticides in what is left of a dwindling and fragmented countryside and farmland, can we be surprised if insects like butterflies and many other animals suffer ill effects?