Shoe Power

Ron Valerio
Philippines

All of us walk at least 5 km a day from the time we wake up until we go back to bed. We can collect walking energy and convert it to electricity. Using a shoe that generates and stores electricity you will have enough power to charge your phone or night lamps from a day’s travel.

Parking Lot Power Grid

Ron Valerio
Philippines

Imagine all those thousands of cars parked for hours in a shopping mall with unused electricity stored in their batteries.

Each car could donate up to 50% of its battery level in exchange for free parking and help recover the parking lot’s usage of electricity. Or for huge parking facilities, cars could be attached to a power grid to power community needs and to offset carbon emissions while vehicles are not in use.

It only takes a few minutes to recharge the battery of a car while driving, then it’s ready again to donate the next time it parks.

Green Land Clearing

Bruce
Vancouver Island, BC, Canada

When people clear land around here for houses and malls, etc. they stack the brush in piles and then burn it. Tons of CO2 go up into the air.

Instead, there should be a machine that can turn this land clearing waste into charcoal, which is a natural fertilizer and excellent carbon sequestration device. Or the debris could be chipped and used for landscaping purposes or compost.

A Green Pen

Mario Negovetich
Australia

I searched for the retail prices of the 12 most popular Brand of plastic ball pens in Australia.

The average price is $2.90. Australia uses and discards every year 50 million pens, at a cost of $145 million. All plastic pens should be green, with a replaceable ink filler. An ink filler cost wholesale $ 0.10, retail? $0.30? 50 million ink fillers at $0.30 cost $15 million, a savings of $130 million, every year.

Worldwide 12 billion plastic pens are used and discarded. Governments should promote the use of green pens.

Paper Receipts

Mark Hersey
USA

I think some places should ask you if you want a receipt before they print one. Say you buy a coffee at a local coffee shop and the cashier hands you a receipt, what are you going to do with it? Throw it
away…right? It’s not like you’re going to return it and if you do it’s going to be right away so he/she should remember you.

Ff this idea could be could be introduced into restaurants, convenience stores, coffee shops or any place you don’t need a receipts from, just imagine the paper we could save. Also the money that the company would save since they have to buy less receipt paper.