can you tell me what this paragraph means

If an early warning can be
obtained and effectively communicated, the challenge becomes
to translate it into effective risk reduction, either by trying to
minimize the likelihood of passing a tipping point or by trying
to minimize the impacts of passing it. Corresponding risk-reduc-
tion strategies need to be evaluated65. For many tipping elements,
warning is unlikely to be early enough to allow aversive action
by mitigation of long-lived greenhouse gases, notably carbon
dioxide. It is conceivable that faster climate intervention meth-
ods, such as mitigation of short-lived radiative forcing agents73
or geoengineering to reduce incoming sunlight74, could be more
effective. However, the multiple sources of inertia in the climate
system, and in human response systems, make this questionable.
An analogous problem of avoiding an approaching tipping point
in an ecological system such as a fishery44 shows that once there
is a reliable early warning of an approaching tipping point, it is
too late for slow intervention methods to avoid it. Even when a
tipping point is unavoidable, mitigation action may still help. For
example, the rate of Greenland ice-sheet melt (and corresponding
impacts through sea-level rise), even when committed to irrevers-
ible meltdown, depends on the extent to which this threshold has
been exceeded