Hashtags are great, aren't they? They allow you to find people who are posting about a similar topic. You might use a hashtag to post questions or comments during a conference. You might use a hashtag to join a social media movement. You might use them to find cute pictures of puppies. The ASU Wrigley Institute has established hashtags for our sustainability scientists and scholars -- you can find them on Twitter, Facebook and Instagram. Search and use the hashtags #SustyScientist and #SustyScholar to join the conversation.