'Flying' microchips could ride the wind to track air pollution
Inspired by floating seeds, they're around the size of a sand grain.
seeds
Amazon bans foreign sales of plants in US after mysterious seed deliveries
There are concerns it's a coordinated threat to agriculture.
Arctic seed vault grows as defense against food crisis
The Svalbard Global Seed Vault is ready for doomsday.We have two newsletters, why not sign up for both?
