Butterfly numbers fell by one third in the US over last two decades

Butterfly numbers have dropped by one third in the US over 20 years because of climate change and habitat destruction – and other insects may be declining too

Source:
https://www.newscientist.com/article/2209171-butterfly-numbers-fell-by-one-third-in-the-us-over-last-two-decades/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home