Look ma, no furnace! See how some Swedish homes stay warm without heating units. It's all about smart design.

watch video

Here's the dirt
Curious? Here's 3 steps to starting a compost pile
E-bikes: 'Commuter cool'?
Keith Felch says his electric bike has slashed his car-use in half
'It's raining beer!'
This "green" beer's name has nothing to do with its color
Dead and green
Pulling back the curtains on eco-friendly burials
Latest news from the SciTechBlog
New gadgets and new discoveries, from the lab to the edges of the galaxy
Here's the scoop
A Scout troop solves a problem that's as old as the sea
Gallery: Homes from boxes
Shipping containers transform into impressive new homes
Quick Vote
Which is most important to you?
Solutions Widget
Solutions Widget
Get the CNN Solutions widget for your blog or Web site for instant access to the most recent stories
Special Podcast
Get the latest video on the go! Did you miss a segment? Download the latest.