Just how environmentally friendly are your cute and cuddly pets? And how much will they cost you? Sustainability reporter Adriene Hill talks with Bill Radke about the your pet's carbon paw print. Plus, view a slideshow of environmentally-friendly pets.
Hydraulic fracturing, or "fracking," may be a boon for the energy industry, but critics are questioning if the process that frees up more gas and oil in the ground is poisoning well water.