Carbon Footprinting

When assessing product economics and carbon footprint, we examine how it's made, shipped, used, and disposed. We scale carbon intensity based on product composition (by weight) and various energy inputs to the process.

Our AI "eMission Control" will often use terminologies and inputs that we either invented or referenced from others. As promised, the list below acknowledges our sources, giving you the option to trust but verify.

 

Tree Coin

You will earn a Tree Coin for each pound of carbon dioxide offset. Tree coins can be converted into discounts for items and services on this store. No good deed should be left unrecognized.

Quests 

From time to time, we ask you to complete an "eMission Control Quest." Quests vary in degree of difficulty, but should you complete them, you will have fun, create impact, and earn Tree Coins!

Battery 

Devices we source or make are often powered by lithium batteries, which emit on average 83.5 kg or 184 lbs of carbon dioxide per kWh capacity. We use this number to assess carbon footprint of appliances.

Freight

Goods procured from overseas are transported via container ships, which emit 3 g of carbon dioxide per metric ton of freight per kilometer traveled. We use this and actual routes to compute emissions!

Tree

A mature tree is one of the best carbon sinks the Earth has, absorbing an estimated 48 lbs of carbon dioxide per year. We may plant one, save one, or make it a quest for you to offset carbon emissions.

Plastic

Plastic is everywhere. There are three kinds. Polyethylene emits ~ 6 kg of carbon dioxide per kg. Polystyrene emits ~ 3 kg of carbon dioxide per kg. Finally, recycled plastic emits ~ 2 kg of carbon dioxide per kg. 

Copper
Aside from making coins, because of copper's superior heat and electricity conductivity, it is widely used in wiring, plumbing, and motors. Producing copper, however, emits 3.8 kg carbon dioxide per kg
Aluminum
This is the most used nonferrous metal. From consumer electronics to large vehicles, it is in nearly everything. Aluminum production emits ~ 12 kg carbon dioxide per kg produced or 2 kg per kg recycled
Paper
An ancient invention that has proven its enduring value in preserving history, wiping stuff, transporting things, etc. Paper is made from tree wood via pulping and emits 2.4 kg carbon dioxide per kg produced.

Electricity

While this varies a lot by local energy supply and will change as our grid becomes cleaner (ie more solar, wind, etc.), today each kWh of electricity generated in the US emits on average 0.92 lbs of carbon dioxide