Fighting Tennessee's ash flood, doubting Montana's power brokers, pondering transit fat, railing against drunk driving, Republicans follow Obama's train of thought, and tips for starting a garden while staying lazy.

East Tennessee gets a flood of coal in its stocking. Also, moose sweating it out in the North Woods, houses that heat themselves, and the Catch-22 of corn-based plastics.

How ants eat frog legs, how rubber ducks can save glaciers, how to Terminate carbon emissions, how GE's trees are getting greener, and how to Google your way off the grid.

Can a stitch in time save a canine? Will global warming ruin the reptile dating scene? Can environmentalists stop the EPA? And will we ever have an "open-source engine"?