Rainwater Harvesting for Drylands and Beyond by Brad Lancaster

Winter-Solstice Shadow Ratio Calculator

WSSR Sun-Angle Calculator 130117 Tucson p1

WSSR Sun-Angle Calculator 130117 Tucson p2

Would you be interested in having access to a usable version of this Winter-Solstice Shadow Ratio calculator? Does it seem like it would be a useful design tool? Send us an email with your comments and feedback.

Drops in a Bucket Blog

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Umbrella Newsletter

The Umbrella: Winter 2019/2020

THE UMBRELLA: A catch-all of resources, events, media, and more from Brad Lancaster   Rain Planting E-BOOK now available! Rainwater Harvesting for Drylands and Beyond, Volume 1, 3rd Edition now available in E-BOOK format Plant the Rain gifts Get holidays gifts that spread the word and practice on how we can make the world a […]

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