0:00 Welcome, with panel host Sarah Kirn
2:17 Funding opportunity and new NASA Citizen Science project announcement, with Dr. Marc Kuchner
4:49 Introduction to keynote speaker
6:40 Keynote presentation, Dr. Julia Parrish
37:25 Discussion with Dr. Julia Parrish and Sarah Kirn

Citizen science can bring the public collective – thousands to millions of people – to bear on problems that remain challenging even for machine learning algorithms. Hands-on citizen science offers a unique opportunity to crowd-source environmental data collection across stretches of space and time that no research lab, or remote sensing program, could hope to attain. And projects that offer repeated activity, such that mastery of tasks and skills is possible, also offer participants the opportunity to learn science through hands-on work, as well as through connections to the dataset as a whole. The Coastal Observation and Seabird Survey Team (COASST) is one such program: a 20 year old environmental citizen science project focused on the land-sea interface - on what comes in on the tide - as a metric of marine ecosystem health. The program is constructed such that deductions (what species is this?) can be independently verified with evidence (measurements, photographs), which also allows accuracy-tracking at the individual level. These learning curves suggest that training is essential but practice makes (near!) perfect. Simultaneous studies of motivation and identity indicate that the natural history stories and actionable science arising out of COASST data at scale provide continued incentives to participate, creating a positive feedback loop which furthers participant expertise and excellence of the science. This presentation will compare and contrast online versus hands-on approaches to citizen science, bringing lessons learned from hands-on approaches into the online, data-driven realm.