Color-changing roof tiles; Brewery Flips Switch on Methane-to-Energy Plant; The nation’s top sustainable colleges; Hydrogen Peroxide Powered Drag Racers; A bamboo bicycle

Color-changing roof tiles can absorb, reflect heat with the seasons Kinda like a lizard, right? MIT researchers have developed roof tiles that change color based on the temperature, turning white when it’s hot to deflect heat and turning black when it’s cold to absorb it.

Brewery Flips Switch on Methane-to-Energy Plant A heat and power project that takes methane gas created at a brewery and converts it into clean energy to run a nearby hospital has entered production.

The nation’s top sustainable colleges The Sustainable Endowments Institute, which is affiliated with the Rockefeller Philanthropy Advisors, recently published the College Sustainability Report Card 2010. The report card features data on 332 colleges, with all of the data available to the public on GreenReportCard.org.

Hydrogen Peroxide Powered Drag Racers Take Off Unlike expensive hydrogen fuel cell and electric-powered cars, h202-powered vehicles are both cheap (hydrogen peroxide is just water with an extra oxygen molecule) and fast — drag racers powered by the stuff can quickly reach speeds of 450 mph!

A bamboo bicycle? A U.S. built, bamboo bike. Nice. Organic Bikes is introducing its new line of bikes and other sustainable products. Each Dylan Bamboo Bicycle is built to the customer’s specifications. How much? $1,000.

Hope you guys all have a fantastic weekend!