Brenty - The increased level
of atmospheric sulfate aerosols from tropical volcanoes over the last decade, blocked sunlight reaching the Earth's surface, which has contributed to a very slight reduction in warming.
The impact of anthropogenic emissions
on atmospheric sulfate production pathways, oxidants, and ice core.17 O (SO4 2 --RRB-.
Perhaps unsurprisingly, these effects were amplified in areas
where atmospheric sulfate deposition had been experimentally elevated to begin with.
Further, translating regional sulfate emission into global forcing isnt really appropriate,
since atmospheric sulfate has too short of an atmospheric lifetime (owing to cloud and rain processes) to influence the global radiation balance.
For the 21st century, the model simulations suggest that the downward trend in insolation is expected to continue until 2050, primarily forced by the
prescribed atmospheric sulfate burden (IPCC SRES A1B).
When that time comes, we will study mitigation as an anachronistic strategy — an abstraction that got sidestepped long ago by the dazzle
of atmospheric sulfates, ironized phytoplankton, and the hubristic impulse to beat the world.