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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


Trouble? Please contact feedback@carbonrally.com

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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


Trouble? Please contact feedback@carbonrally.com

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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


Trouble? Please contact feedback@carbonrally.com

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US Residents: Please insert your town and state separated by comma and a space. Then pick from the list of locations. (Manchester, MA)


Non-US Residents: Please insert your town, state/province, and country separated by comma and a space. Then pick from the list of locations (Montreal, Quebec, Canada)


Trouble? Please contact feedback@carbonrally.com

By clicking “Register”, you are indicating that you have read, understood, and agree to Carbonrally’s Terms of Service and Privacy Policy. Account holders must be at least 13 years of age.

Challenge Workshop

Have an idea for a fun, creative new challenge for the Rally? Please post it here.
You can also vote for your favorites. Please see the blog article to learn more.


The most popular and unique ideas will become actual Featured Challenges in the Rally.

Hair Drying

If you take a shower late at night, you need to use the hair dryer so your head doesn't hurt at night. Well, for a whole month, try to take a ...

Current score: 5

Great one!

suggest test

hello, description s

Current score: 2

Great one!

Why all the Wrapping anyway?

Every Holiday season, Birthday, Anniversary, Graduation,ect We give and receive gifts. Spending tedious time labouring over getting all the wrin...

Current score: 1

Great one!

Computer Brightness

I bet all of you here, when you use your computer, put it to the brightest possible so you can see. You really don't have to make it so bright...

Current score: 9

Great one!

When remodelling your kitchen or bath give your appliances & cabinets to the rebuilding center or give away free on freecycle.org

When remodelling your kitchen or bath give your appliances & cabinets to the local rebuilding center, or give them away free on freecycle.org

Current score: 1

Great one!

Dishwasher Safe

Instead of using your dishwasher to wash dishes everynight, try to wash your dishes by hand. Your water bill will go down a lot.

Current score: 2

Great one!

Coffee and Tea

Consume only organic tea and organic/fair trade coffee

Current score: 2

Great one!

Stop the Curl!

If you are a person who curls your hair every morning, this challenge is for you to not curl your hair for a whole week! You will reduce a lot of c...

Current score: 6

Great one!

It's common sense

When it's raining, turn off the sprinklers, especially if the sprinklers are already going! (Got this idea from seeing a sign on a casino.)

Current score: 7

Great one!

Less or More AC/heat?

When it's the summer, and you feel really hot, don't you turn on the AC to a really low temperature? Well, for this challenge, we want yo...

Current score: 4

Great one!

Battery Bonzi

When you you get the "low battery" warning on your games, computer, wii, or any other electronic, most people just throw the batteries aw...

Current score: 5

Great one!

Staying in the Shadows?

Keep all your lights turned off for one whole day.

Current score: 8

Great one!

Unplug your vampires!

Many appliances still use electricity even when turned off. Unplug your phone chargers, straighteners, microwaves, computer chargers, etc when you&...

Current score: 6

Great one!

Say no to Gift...Cards

Now, I know what you're thinking: You're saying NOT to accept gifts? Well, not exactly. It's just hard to green gift cards. They are...

Current score: 2

Great one!

I'm Dreaming of a Green Christmas

My favorite sort of gift to receive is a truly green one, and no, I'm not talking about money (though that's nice too.) Instead of giving...

Current score: 1

Great one!

Green Gift Bag

As nifty as the old "recycle your newspaper into wrapping paper" standby is, for those of us who no longer get newspapers yet want to giv...

Current score: 2

Great one!

Text Message Fury

If you are in the middle of a chat with someone,don't just leave your phone on. Instead lock it until you need it.

Current score: 4

Great one!

no screens

take down the solar screens that are in your house during the winter. more heat will come into the house, so you can keep your thermostat lower.

Current score: 3

Great one!

Unplug It

I know most of you have cell phones, right? well I bet most of you guys leave the chargers plugged in after you use it, well in this challenge you ...

Current score: 11

Great one!

Why use so much elecricity?

Cut down on watching television and using the computer, use the everyday electronics for only 15-30 minutes.Try to stop using electricity!!

Current score: 5

Great one!