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Insect numbers down 25% since 1990, global study finds
theguardian.com
The biggest assessment of global insect abundances to date shows a worrying drop of almost 25% in the last 30 years, with accelerating declines in Europe that shocked scientists.
The analysis combined 166 long-term surveys from almost 1,700 sites and found that some species were bucking the overall downward trend. In particular, freshwater insects have been increasing by 11% each decade following action to clean up polluted rivers and lakes. However, this group represent only about 10% of insect species and do not pollinate crops.
https://www.theguardian.com/environment/2020/apr/23/insect-numbers-down-25-since-1990-global-study-finds
