Now at the end of my geoengineering journey, I would
love to proclaim a clear ‘solution’ to climate change and I did expect one
method would stand out above the rest. The fact that different geoengineering
methods are more appropriate depending on your perspective has become
increasingly clear. For instance, from a purely climate change perspective DACCS
is probably the most effective, from an economic perspective probably BECCS.
In terms of spreading the negative impacts, space
sunshades could be seen as the fairest, but enhanced
weathering, biochar
and afforestation/reforestation
are much easier to implement locally.
I originally planned to elaborate on Renee’s Review (see
earlier
post)
and rank all of the geoengineering methods based on my opinion. However, I feel
this is no longer appropriate because it is not that clear-cut. Therefore, I
have listed whether I think each method should be implemented on a large scale,
small scale or not at all, to reach the 2 degree target.
Surprisingly, I feel
slightly more optimistic about reaching the 2oC target, although I
am very sceptical about reaching 1.5oC. In answer to my blog title,
I feel it could be ‘Two Degree’ by 2100 if
a combination of geoengineering approaches are explored alongside reduced emissions. I hope you’ve enjoyed discovering the
world of geoengineering as much as I have. Until next time!
