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Challenges
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De-cup Your Decaf Featured on Sep 13, 2012
Challenge
Are coffee shops part of your daily routine? If so, go one week without using any disposable coffee cups.
Individual Result
By using your own coffee cup, you will reduce your CO2 emissions by a total of 1.25 lbs this week.
Rally Impact
13531 people have reduced CO2 emissions by 8.31 tons by completing this challenge so far. That's equal to turning off the electricity of 7 homes for about 1 month!
Lonely Light Love Featured on Mar 20, 2011
Challenge
Turn off the lights in an empty room. Do it each day for seven days.
Individual Result
Killing un-needed lights in one room every day for a week will reduce CO2 emissions by 8.13 pounds.
Rally Impact
3299 people have reduced CO2 emissions by 12.77 tons by completing this challenge so far. That's equal to turning off the electricity of 14 homes for about 1 month!
Bust a Gust Featured on Jan 03, 2011
Challenge
Identify and snuff-out drafts in your home or apartment. We'll show you how.
Individual Result
By keeping chilly air from seeping in, you'll eliminate 175 lbs of CO2 emissions this winter and knock $23 off your heating bill.
Rally Impact
696 people have reduced CO2 emissions by 59.24 tons by completing this challenge so far. That's equal to turning off the electricity of 68 homes for about 1 month!
Two Cool Featured on Jul 23, 2010
Challenge
Need to take your CO2 savings up a notch? If you use AC, try turning it up by two degrees for a week. No sweat.
Individual Result
Cutting back on your air conditioning just a little bit will reduce your CO2 emissions by 5.4 lbs for the week.
Rally Impact
4903 people have reduced CO2 emissions by 12.94 tons by completing this challenge so far. That's equal to turning off the electricity of 14 homes for about 1 month!
Anvil Fashion Swap Featured on Apr 08, 2010
Challenge
Find a nice piece of clothing you no longer wear, and swap it with a friend. We'll show you how.
Individual Result
When you swap a piece of clothing instead of buying new, you'll eliminate about 29 lbs of CO2.
Rally Impact
1443 people have reduced CO2 emissions by 21.07 tons by completing this challenge so far. That's equal to turning off the electricity of 28 homes for about 1 month!
Kick The Catalogs Featured on Jan 13, 2010
Challenge
Cut down on the number of catalogs jamming your mailbox this year. We'll show you how!
Individual Result
Reducing your catalogs by 75% will lower your CO2 emissions a total of 30 lbs over the next 12 months.
Rally Impact
2744 people have reduced CO2 emissions by 40.72 tons by completing this challenge so far. That's equal to turning off the electricity of 35 homes for about 1 month!
Counter Intelligence Featured on Sep 24, 2009
Challenge
Give up paper towels for one month. Use alternatives, such as dishtowels or sponges.
Individual Result
Eliminating your use of paper towels will reduce CO2 emissions by 5.8 lbs this month, and save you about $8.
Rally Impact
1620 people have reduced CO2 emissions by 4.14 tons by completing this challenge so far. That's equal to turning off the electricity of 1 home for about 1 month!
Cold Then Fold Featured on Aug 05, 2009
Challenge
Use only cold water to wash and rinse all of your laundry this month.
Individual Result
By washing more of your laundry in cold water, you will reduce your CO2 emissions by 30.4 lbs and save about $3!
Rally Impact
2947 people have reduced CO2 emissions by 42.25 tons by completing this challenge so far. That's equal to turning off the electricity of 35 homes for about 1 month!
Sheets to the Wind Featured on May 07, 2009
Challenge
Use a clothesline for a few loads of laundry this month. Let evaporation dry your clothes instead of electricity!
Individual Result
By line-drying 1 laundry load per week, you will reduce your CO2 emissions by 18.8 lbs and your energy cost by $1.40 after one month.
Rally Impact
4432 people have reduced CO2 emissions by 41.03 tons by completing this challenge so far. That's equal to turning off the electricity of 35 homes for about 1 month!
Sit, Click, and Deliver Featured on Mar 30, 2009
Challenge
Are you planning to drive to the store? Grab your mouse instead, and make the purchase online.
Individual Result
Shifting one purchase to online and avoiding a car trip to the store will reduce your CO2 emissions by 7.4 lbs.
Rally Impact
3065 people have reduced CO2 emissions by 11.34 tons by completing this challenge so far. That's equal to turning off the electricity of 14 homes for about 1 month!
Cash-in Your Closet Featured on Feb 20, 2009
Challenge
Give a decent item of clothing a new life. Find something you rarely wear, and sell or donate it. We'll show you how.
Individual Result
Selling or donating one item of clothing you don't need can reduce CO2 emissions by 27.1 lbs.
Rally Impact
7878 people have reduced CO2 emissions by 104.05 tons by completing this challenge so far. That's equal to turning off the electricity of 136 homes for about 1 month!
Setback Payback Featured on Jan 02, 2009
Challenge
Want to save money on your heating bill and also reduce CO2? It's as simple as getting with the program.
Individual Result
Using a programmable thermostat for 1 month will eliminate 200 lbs of CO2 and save $32.
Rally Impact
3156 people have reduced CO2 emissions by 310.29 tons by completing this challenge so far. That's equal to turning off the electricity of 339 homes for about 1 month!
Dish-up Some Savings Featured on Sep 29, 2008
Challenge
If you don't already, it's time to use the energy saver options on your dishwasher. We'll tell you how and why.
Individual Result
By using low-energy dishwasher settings for one month, you will eliminate 20.5 lbs of CO2 and save $1.27.
Rally Impact
3533 people have reduced CO2 emissions by 33.27 tons by completing this challenge so far. That's equal to turning off the electricity of 35 homes for about 1 month!
Super Challenge: Boast About Compost Featured on Jun 13, 2008
Challenge
Hit pay-dirt! For the next three months, compost your kitchen waste and yard clippings.
Individual Result
Composting part of your daily garbage will reduce methane emissions equal to 30 lbs of CO2 each month.
Rally Impact
2083 people have reduced CO2 emissions by 86.92 tons by completing this challenge so far. That's equal to turning off the electricity of 102 homes for about 1 month!
Air-out Your Fridge Featured on May 01, 2008
Challenge
Clean your fridge coils to help it breathe easier. You don't need special tools, just a desire to reduce CO2.
Individual Result
Giving your fridge a quick check-up will reduce CO2 emissions by 150 lbs over the next 6 months and save you $9.70 in energy costs.
Rally Impact
1486 people have reduced CO2 emissions by 110.46 tons by completing this challenge so far. That's equal to turning off the electricity of 136 homes for about 1 month!
Power Shower Featured on Apr 10, 2008
Challenge
Knock 2 minutes off your daily shower time. Do it for a month. Use a timer to stay honest!
Individual Result
Reducing your shower from 8 minutes to 6 for a month will reduce CO2 emissions by a total of 15.3 lbs, and energy costs by $1.32.
Rally Impact
9928 people have reduced CO2 emissions by 70.7 tons by completing this challenge so far. That's equal to turning off the electricity of 68 homes for about 1 month!
Change a Few Bulbs Featured on Oct 15, 2007
Challenge
Replace just 3 of the regular light bulbs in your home with Compact Fluorescent Light bulbs.
Individual Result
You will reduce your CO2 emissions by 2.1 lbs each day for an annual impact of 766 lbs. You'll also save $18 per year in energy cost.
Rally Impact
6102 people have reduced CO2 emissions by 8,826.35 tons by completing this challenge so far. That's equal to taking 1731 cars off the road for about one year!

