If nothing else, Earth Day is a moment to take pause and reflect. It's a time to take stock of the state of the environment, the tenor of environmentalism, and the impact of past actions.
This reflection, however, inevitably leads to a single conclusion: There's still a lot of work to be done. This year, TreeHugger asked some of the biggest green brains—from novelist Margaret Atwood to architect Michelle Kaufmann to scientist David Suzuki—a simple but open question: If you were in charge, what would you fix first?
And the answers were as diverse as the responders.