On this week's Under the Microscope, limiting carbon dioxide pollution and growing the local food movement.
The comment period has closed on the U.S. Environmental Protection Agency's proposed rule to limit carbon dioxide pollution from power plants. As Véronique LaCapra reports, the proposal is highly contentious.
More cities want to take eating local food from just a hip trend to an economic generator. But as with many grassroots movements, there can be some growing pains along the way. That has some looking to the tech sector for lessons. Luke Runyon reports.