MNN's picks for the week of April 5-11, 2009:
• Green vs. red: One mom's mission to raise an eco-friendly family despite the recession.
• Green Empire: New York's Empire State Building to get a $500 million energy-efficient makeover.
• MNN book review: "Animal Investigators" is like CSI for animals.
• Video break: Catch the latest episode of Captain Planet. (This week, it's "Ghost of Porkaloin Past" -- don't miss it.)
• Water wars: Managing this resource has traditionally brought out humanity's wackiest ideas.