Our picks for the week of Aug. 2-8:
• Heath Ledger's swan song: The late actor never got to see the final product, but you can watch this environmentally themed animated music video of "King Rat," a song by Modest Mouse.
• On the Streets: Jonathan Kesselman shares the "truth" about global warming. Watch this video if you want to giggle.
• Where does coal come from? Translating Uncle Sam digs into the history and the science.
• Guinea pig craze: Disney's latest movie, G-Force, may create a demand for the animals, which don't make great pets.
• How Phoenix stays hydrated: One dry city's experience could be helpful to others.
• Good, green office: MNN talks to the authors of a book about green office design on where they go for inspiration.
• Ecollywood: The grandchildren of oceanographer Jacque Cousteau are coming to a TV near you.