Hello Andrew,
there is no direct answer to your question.
A ton of CO2 (avoided or withdrawn from the atmosphere) has a
long-lasting effect (which one can compute from the knowledge of the RF
caused by a pulse emissions, convolved with the temperature change
caused by a pulse RF). A unit of SRM has much shorter effect because the
RF only lasts for a shoçrt time, hence the timescales of the cooling are
that of the climate system). So in conclusion, it depends very much on
your preferred climate metric (GWP100, GTP100, or whatever else), which
itself depends on your climate objective. You may also imagine that the
equivalence evolves over time.
Regards,
Olivier
How many carbon credits is a tonne of SRM worth?
We could work this out as watts cooling or weight sulphur for weight
carbon. Doesn't really matter.
Thanks
Andrew
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