[Terrapreta] The economics of biochar

[Richard Haard]

Rick

Is this 5.57 Tonnes of CO2 your per capita share or the total carbon  
emitted by the entire flight? If this is total flight use then would  
not your share be say 1/100 th of this amount?


On Dec 29, 2007, at 1:45 AM, Rick Davies wrote:

> I have started to look into how I could buy carbon offsets that  
> would compensate for the CO2 generated by my international  
> airflights each year. One of those is a London-Melbourne return  
> trip.  According to ClimateCare in the UK (http:// 
> www.climatecare.org/) the total mileage of this flight is 20,994  
> Miles and the resulting emissions are: 5.57 Tonnes of CO2(Put aside  
> for the time being the question of how accurate this estimate is).  
> The cost to offset this CO2 will be £41.76, if I use Climate Care's  
> services.
>
> I searched the web to find out how much carbon there is in a tonne  
> of C02. One source says "Carbon comprises 12/44 of the mass of  
> carbon dioxide" (http://epa.gov/climatechange/emissions/state_energyco2inv.html 
> ) So, my 5.57 tonnes of CO2 would be equal to 1.51 tonnes of carbon.
>

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