Environmental stewardship manifests itself as reactive activities, regulations and enforcement. All three assume people will behave badly when it comes to environmental stewardship.
We have Earth Day and other focal events, but the underlying challenge is the lack of behavioral and cultural stewardship toward those actions, or lack of actions, that result in the need for beach clean-ups and other remediation initiatives.
To affect real environmental stewardship a critical mass of the right behaviors, organizations, and leadership are needed to affect a cultural change.