17:17:30	 From  Elisabeth Green : Most expressions of carbon emitted are in metric tonnes which is confusing  when spoken in the US. Google says there are 907.185 kilograms per US ton. Is that accurate? Why shouldn't a token be per metric ton or 1 token/tonne?
17:19:03	 From  Elisabeth Green : One token/tonne sequestered is a positive value.
17:23:12	 From  Christiaan Pauw : If the unit is just explicitly states, it is easy to convert  to another
17:29:41	 From  Bertrand's iPhone : sorry o think that was a typo - should be kg !
17:36:47	 From  Elisabeth Green : How much carbon does it cost to register a certificate on blockchain and who pays it?
17:39:22	 From  Elisabeth Green : No need to use the word token. Use the word certificate of carbon sequestration or emission per activity.
17:40:38	 From  Elisabeth Green : environmental footprint contains carbon footprint plus social footprint? Plus other footprint?
17:44:48	 From  Elisabeth Green : Proposed units:   activity (GPS location in longitude and latitude, start in h UTC, end in h UTC, agent in public key, materials in metric units, output in kg carbon sequestered, process in ?, objective in ?)
17:48:24	 From  Elisabeth Green : Soukaina and I are team members in a use case for the next week or so in a blockchain bootcamp sponsored by Duke University.
17:51:36	 From  Elisabeth Green : Comparing  footprint calculators include: 
https://offset.climateneutralnow.org/footprintcalc  
https://www.footprintcalculator.org/  
https://www.allbirds.com/pages/carbon-footprint-calculator
17:53:01	 From  Alex Aruj : Recently found https://clevercarbon.io/ - for comparison purposes
17:53:44	 From  Elisabeth Green : Governments must calculate the carbon footprint of each constituent and use a carbon tax to incentivize conversion towards sustainable healthy ecosystems. 
We are developing carbon footprint calculation standards for equitable carbon taxing.
17:57:00	 From  Elisabeth Green : Do the indicators go into the chain code?
17:58:49	 From  Elisabeth Green : Do the activities go into the smart contract code? Do the states go into the certification code?
18:00:22	 From  Elisabeth Green : Does carbon footprint include GHG including SO2?