So to plant a row of trees a bulldozer has to level sand dunes. I somehow doubt the exhaust from this process is factored into the CO2 sink calculation.
> Of course, we know that fuel consumption varies drastically from machine to machine, so we’ve looked at an example of a very high utilisation rate too. We found that an 8T excavator that spent 11 hours and 3 minutes working, 1 hour and 6 minutes of which were idle, it used 89 litres of fuel and resulted in 237.4kgs of carbon emissions. 4 hours saved on that machine would be a total of 84kgs of carbon emissions on average.
> To determine the amount of carbon dioxide a tree can absorb, we combine average planting densities with a conservative estimate of carbon per hectare to estimate that the average tree absorbs an average of 10 kilograms, or 22 pounds, of carbon dioxide per year for the first 20 years.
As long as they're not taking all day for one tree, I think they'll be OK.
That tree carbon capture estimate is probably conservative here if planting trees achieved de-desertification and resulted a larger thriving ecosystem.
ceejayoz|17 days ago
> Of course, we know that fuel consumption varies drastically from machine to machine, so we’ve looked at an example of a very high utilisation rate too. We found that an 8T excavator that spent 11 hours and 3 minutes working, 1 hour and 6 minutes of which were idle, it used 89 litres of fuel and resulted in 237.4kgs of carbon emissions. 4 hours saved on that machine would be a total of 84kgs of carbon emissions on average.
https://onetreeplanted.org/blogs/stories/how-much-co2-does-t...
> To determine the amount of carbon dioxide a tree can absorb, we combine average planting densities with a conservative estimate of carbon per hectare to estimate that the average tree absorbs an average of 10 kilograms, or 22 pounds, of carbon dioxide per year for the first 20 years.
As long as they're not taking all day for one tree, I think they'll be OK.
zokier|17 days ago
unknown|17 days ago
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