This week at TreeHugger: Lithium ion phosphate cells from Lithium Technology Corporation give the humble Prius a 125 MPG upgrade. Meanwhile, another company is selling solar panel systems for commercial hybrids that give the cars up to 20 miles of electric driving (just remember to park in the sun). This converted Yamaha R1 motorcycle had its guts ripped out and replaced with a cluster of batteries and some downright respectable speed. In New York City, the Doe Fund is giving new meaning to the word recovery. The non-profit is giving addicted and homeless men a second chance by putting them to work collecting the city's precious grease for biodiesel. Growing crops for biofuels, however, seems to be having a shocking consequence: jacking up the price of beer. European farmers aren't growing barley like the used to and patrons are feeling it at the tap.

[TreeHugger's Perspective Shift roundup appears every Wednesday]