evidoria

Browse practices

This selection at a glance

197
matching practices
16%
strong evidence, of 150 assessed

Evidence mix

Randomised controlled trial 10
Quasi-experimental 14
Observational / pre–post 66
Descriptive / self-reported 60

47 practices not yet assessed for evidence strength.

Most practices in: United States of America (197)

Results

197 result(s) Download CSV Get alerts for this search Cards List
Good practice Evidence: Observational / pre–post Top 18% 60/100

New York City Catskills watershed protection

Rather than build an $8–10bn filtration plant, New York City invests in protecting its Catskill/Delaware watershed — ~$2.5bn since 1997 — keeping …

Catskills, New York, United States of America
Good practice Evidence: Observational / pre–post Top 32% 53/100

MWRA Quabbin–Wachusett Watershed Protection Program (USA)

By protecting 75% of the Quabbin, Ware River and Wachusett watersheds as forested open space and buying about 1,500 acres a year, …

Boston, United States of America