In
what
feels
like
the
blink
of
an
eye,
cheap,
bountiful
natural
gas
has
been
controversially
unlocked
across
swathes
of
the
US
by
“fracking”
In
the
eyes
of
some,
this
shale
gas
represents
an
environmental
catastrophe
and
an
existential
threat
to
renewables.
For
others,
it
is
a
near-perfect
complement
to
renewables,
offering
the
prospect
of
a
gentler,
less
economically
disruptive
transition
to
a
coal-free
future.
And
the
extent
to
which
shale
gas
and
renewables
ultimately
compete,
coexist
or
co-operate
is
of
profound
consequence
not
only
to
future
US
energy
policy,
but
around
the
world.
Unsurprisingly,…