A new study has worrying conclusions about changes to a vital aspect of the global climate system.
Why it matters: The apparent weakening of the Atlantic Meridional Overturning Circulation (AMOC) — largely because of melting ice — is a reminder that climate change could bring about nasty surprises in the future.
Wastewater is proving a valuable resource to genetically track the spread of the coronavirus — and the emergence of new variants.
Why it matters: As long as widescale testing and genetic surveillance remains constrained, we'll always be a step behind COVID-19. But sequencing sewage presents a cheap and simple way of keeping tabs on viral spread within a community.
