Want to see more people on bicycles? Or want more cyclists to wear helmets? How about encouraging eco-vacations for travelers and greener urban spaces for staycationers, too? Share your best ideas for a greener future by entering these contests — and win a little something for your green-minded efforts too: 

>> Assuage the eco-guilt of peripatetic environmentalists — and win a free 8-day trip to Machu Picchu. Love to travel — but hate the carbon emissions involved in wandering around the world? Just create a 1-minute video or 100-word blog post with your thoughts on why traveling makes the world a better place. Submit that eco-rationalization — AND subscribe to both Your Daily Thread and Intrepid Travel’s e-mails — by Sept. 10 for a chance to win.

>> Promote fair trade — win $2,000 worth of eco-goodies. The I Love Fair Trade! contest wants you to use words, images, video, music — or really, any kind of media — to explore and express why you love fair trade. The winner gets eco-fashions and accessories, chocolate, and other fair trade goods and yummies. Share your love by Sept. 26!

>> Make bike safety look cool — and win €2,000. Fiat and Italian Vogue want to put your graphic design on bike helmets. Create a design that represents sustainable style to win the cash and to see your handiwork on a series of limited-edition bike helmets, the sales of which will benefit Milan’s Adopt-a-Tree initiative. For bikerly inspiration, check out other new eco-travel gadgets, like a fancy and expensive bike bottle opener and the geek-friendly solar-powered bike bag. Then submit your design by Aug. 23.

>> Design a green downtown Los Angeles — and win more than $11,000. Here’s your chance to dream up an innovatively green Los Angeles’ CleanTech Corridor — a development zone on the eastern edge of downtown L.A. established by the Community Redevelopment Agency of Los Angeles and the mayor's office. Launched by the Southern California Institute of Architecture and The Architect’s Newspaper, the Los Angeles Clean Tech Corridor and Green District Competition wants to see “an integrated economic, residential, clean energy, and cultural engine for the city through architectural and urban strategies.” Get designing; the first deadline for the FAQ is on Aug. 20. (via GOOD)

4 ways to go green to win green
Tired of trying to motivate others to live greener lives? Four contests rely on good old-fashioned self-interest to get you proselytizing eco-behavior.