
Of course, solar activity is just one natural source of climate
variability. Volcanic eruptions are another, spewing gas and dust
into the atmosphere. Nevertheless, it remains crucial to
understand the precise changeability of the sun, and the way it
influences the various regional patterns of weather on Earth.
Climate scientists will then be able to correct for these effects,
not just in interpreting modern measurements but also when
attempting to reconstruct the climate stretching back centuries. It
is only by doing so that we can reach an unassailable consensus
about the sun's true level of influence on the Earth and its
climate.
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