As William Brangham reports, the primary culprit's are COVID-19 and opioid overdoses.

据威廉·布朗汉姆的报道，主要原因是新冠肺炎与阿片类药物使用过量。

Further south, in the UK, glowworm numbers have collapsed by three-quarters since 2001, research has found, with the climate crisis considered the primary culprit.

研究发现，在更南边的英国，自 2001 年以来，萤火虫的数量已经骤降了四分之三，而气候危机被认为是主要的罪魁祸首。