HomeHacker News Show HN: We tracked every piece of litter in SF’s SOMA District in 2019 and 2020 https://ift.tt/30bdF0w byHat hair -November 10, 2021 0 Show HN: We tracked every piece of litter in SF’s SOMA District in 2019 and 2020 https://ift.tt/31JPMgJ November 11, 2021 at 01:45AM Tags: Hacker News Facebook Twitter