NASA @NASA
Meteorological spring has sprung in the Northern Hemisphere, waking up lively swirls of phytoplankton in North Atlantic Ocean. Like plants on land, the primary producers of the sea need sunlight and nutrients to thrive. Springtime brings both: https://t.co/KP2JyB1tOr https://t.co/2887HNequk — PolitiTweet.org