  In \citenospec{MR1097615} several spectral sequences for (global and local)
Iwasawa modules over (not necessarily commutative) Iwasawa algebras (mainly of
$p$-adic Lie groups) over $\Z_p$ are established, which are very useful for
determining certain properties of such modules in arithmetic applications.
Slight generalizations of said results can be found in \citenospec{MR2333680}
(for abelian groups and more general coefficient rings), \citenospec{MR1924402}
(for products of not necessarily abelian groups, but with $\Z_p$-coefficients),
and \citenospec{MR3084561}. Unfortunately, some of Jannsen's spectral sequences
for families of representations as coefficients for (local) Iwasawa cohomology
are still missing. We explain and follow the philosophy that all these spectral
sequences are consequences or analogues of local cohomology and duality \`a la
Grothendieck (and Tate for duality groups).
