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Classifying the following gadgets as crazy is far from a stretch. However, determining whether these gizmos are crazy cool or crazy ridiculous can only be decided by consumers. One thing I know for sure is that there are some green-minded and extremely creative people developing interesting products.

Source: International Energy Association (IEA)

Estimated electricity consumption in the residential sector from “information and communication technologies” and “consumer electronics,” 1990-2030.

Technology has become a large part of our daily lives. In fact, the global gadget habit is seen by many as an opponent of sustainability. With millions of tons of electronic waste being produced each year, e-waste has become a mounting global problem. Therefore, it is vital that we think outside of the box to create biodegradable and energy efficient alternatives to the products we use in our daily lives.

1. Orange Power Wellies – Feet Powered Gadget Charger

EnviroGadget: Orange Power Wellies

This gadget takes a new approach at sustainable energy by using the heat of your feet. The boots harness enough energy from the heat to power small electronic devices. It takes approximately 12 hours to produce enough energy to charge your cellphone for an hour.

2. MetaCell – Portable BatteryEnviroGadget: MetaCell

This portable battery charger is powered by saltwater or even more accessible – urine! It is simply ready for use anywhere. Rumored to be developed for the South Korean military, the battery combines the chemical properties of magnesium with the sodium in saltwater or urine to create a low voltage current. The battery generates enough electricity to power flashlights or even laptops.

3. Edible Christmas Cards

EnviroGadget: Edible Christmas Card

Are you one of those people who have a hard time letting go of really sentimental cards? Don’t throw it away…just eat it! A British design company has created edible sprout and potato-based Christmas cards. The cards are printed with food coloring rather than ink. It is a great way to speed up compost!

4. Waterpebble – Shower Usage Monitor

EnviroGadget: Water Pebble

Do you have that one pesky roommate that uses up all of the hot water? Do you shudder at your water bills? The creators of the waterpebble have found a convenient way to monitor your shower usage. The pebble uses three lights to display whether you have used too much, just enough or a planet-saving amount of water. The waterpebble records the amount of water consumed the first time that the monitor is used. It then subtracts a minimal amount each time you shower to gradually determine what is “just enough” and minimize your water consumption.

5. Biopac Biodegradable Pint TumblersEcoGadget: Biopac Biodegradable Pint Tumblers

Perhaps the best green gadgets are not the most complex, but rather the simplest and most useful. Pictures of college parties are littered with infamous red party cups. This eco-pint is a great alternative to petrochemical based plastic cups. The tumbler material is derived from corn starch and is 100% biodegradable and compostable. You can now be the coolest and greenest one at the party.

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