J. Amos, Sci. correspondent, BBC
.2022-jan-21…aprox16h00.utc
“…data from three weather satellites … was used…”
see also : 2022-01-15 volcano
.xpost.to./c/Green?
“Eruptions can cool the climate. The Tonga event is unlikely to do that”
–BBCProbably would be bad anyways… those effects are only temporary, but would make people complacent to not change anything again for a while.
i say people should know, if even to debunk falsehoods … so i call @wabooti@lemmy.ml
mod of lemmy.ml/c/greenHunga-Tonga volcano’s effect could be :
1/30 Pinatubo …
= 1/30 x 0.5⁰C so : quite negligible.
(according to very early information)i am no expert, studies will come later
You’re correct. Large volcanic eruptions like Pinotubo and the more recent Tonga eruption can only cool the climate as a result if the atmospheric ash layer that they produce (tephra). This cooling occurs by partially blocking sunlight and as the ash layer gradually settles, the cooling effect is considerably diminished.
This sort of cooling effect (ash layer cooling) isn’t exactly something we should hope for or rely on, as any ash layer significant enough to cause long term climate cooling would be spread around the world and the particulate layer that blocks the sun would also cause all kinds of issues (i.e. grounding flights because the particulate matter would cause planes to malfunction).
