Climathon is a global year-round program, with a powerful solutions-hackathon at its core, creating climate action in the form of tangible projects; supporting climate positive businesses and start-ups; and, addressing local policy changes. There are ~250K tourists in Hawaii every single day. Tourism is a vital part of our economy. Let’s make the impacts of tourism more sustainable for every person. This year’s climathon challenge: How can we reduce the human impact of tourism in Honolulu?