The earth itself is changeable, with or without our help. Seattle faces a severe drought this summer, the worst in 30 years. Already difficult choices are being made. When demand exceeds supply, such situations may be unavoidable. Seattle's today could be Boulder's tomorrow.
Conservation can start any time.
It can start now. Consider the lowly lawn. Boulder's demand for water literally doubles from winter to summer, and each new square foot of green is a thirsty sponge. But not all sponges are equal. Nonnative grasses often require more water, while those adapted to dryness are conservers, hanging on to every drop.