Wow the Bureau of Water Reclamation actually has a pretty good website where you can graph all the aspects of reservoir data. https://www.usbr.gov/rsvrWater/Hi

Wow the Bureau of Water Reclamation actually has a pretty good website where you can graph all the aspects of reservoir data. https://www.usbr.gov/rsvrWater/HistoricalApp.html https://www.usbr.gov/rsvrWater/HistoricalApp.html I would say that less inflow to Lake Powell would be a sign of climate change. If you look at the past inflows since 1965 the most recent years seem to be in line with the past. It looks like total releases might have increased a little lately but not that much.