Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green.
At this time of year, you tend to see lots of cars with Christmas trees strapped to their roofs. But that could become a less common sight due to climate change -- extreme weather events are making life harder for tree farmers, causing tree shortages in the northeastern US. As an alternative, Inhabitat rounded up a list of this year's top eco-friendly faux Christmas trees. In New York, this year's Rockefeller Center Christmas tree is lit up with 45,000 solar-powered LED lights. In the spirit of the season, Russian photographer Alexey Kljatov took some stunning macro photos of snowflakes by hacking a cheap Canon PowerShot. Inhabitat also unveiled its annual green gadget gift guide, and we shared the real story behind the "design" of Christmas (hint: It involves Santa and 'shrooms).