
US Department of the Interior @Interior
The @USGS Pollen Laboratory studies landscape changes from hundreds to millions of years ago! Pollen can help determine how an ecosystem responded to climate changes in the past, what’s happening now, and what could happen in the future. https://t.co/lJTWS3eZG4 https://t.co/6MSqUPdTIx — PolitiTweet.org