 The project teaches audiences about non-Euclidean geometry, while also engaging them with the subject of climate change and the decimation of reefs due to global warming.As of early 2020, more than 10,000 people from New York and London, to Riga and Abu Dhabi, have actively contributed pieces to "Crochet Coral Reef" exhibitions in more than 40 cities and countries.More than two million people have seen these shows.