
If only we could solve:
- Car culture: 42,795 deaths in the US in '22 and rising; ave ~20% of household expenses per year
- Guns: 48,830 firearm-related deaths in the US in '21, 54% suicides
...then we could tackle...LAWNS:
"Nationwide, landscape irrigation is estimated to account for nearly one-third of all residential water use, totaling nearly 9 billion gallons per day." (Based on the PDF version at link, this was 2013.)
19january2017snapshot.epa.gov/www3/watersense/pubs/outdoor.html