  Dark Energy is the dominant component of the energy density of the Universe.
However, it is also very elusive since its interaction with the rest of the
Universe is primarily gravitational.Since Dark Energy is a low energy
phenomenon from the perspective of particle physics and field theory, a
fundamental approach based on fields in curved space is sufficient to
understand the current dynamics of Dark Energy. The key issue is to understand
the gravitational dynamics of Dark Energy and its observational consequences.
However, finding the observational consequences of Dark Energy dynamics has
been a very challenging task. For something which is the dominant component of
the energy density of the Universe, Dark Energy appears to be very distant and
reclusive. Here we show that the Dark Energy dynamics results in the production
of gravitational waves which produce the ellipticity variation in the orbit of
earth that results in the periodicity of the Ice Ages observed and documented
by geologists and climatologists. Previously, no observational signature of
gravitational waves produced by Dark Energy dynamics has been reported.
Further, no interpretation of the ellipticity variation of the orbit of earth
due to gravitational waves or the linking of such gravitational waves to the
Ice Age periodicity has been reported previously. We hope that the current work
will lead to some fresh insights and some more interesting work.
