Anyone who has added extra insulation first!
Would be very interesting to overlay the plant hardiness zone map shown with a population densities map (from Census Bureau) and use the resulting data (from combined layer) to estimate per capita, per zone, average expense for heating versus cooling.
Image credit:Arbor Day Foundation, plant hardiness zone map, adapted to changing climate.
Get up close and personal with the natural world with these amazing photos.
Use this list to clean without spreading toxic chemicals around your home.
Don't miss the beer-can shingles on this DIY beauty that was built in a day
Photographer Daniel Beltrá's shocking visual journal of the disaster.
Modular design is a new wave in tech, making gadgets greener along the way.
From hermit crab shells to moon bases, 3D printing may remake the world.
Toast your grad's entry into the big wide world with durable, useful gifts.
