They
were,
critics
said,
nothing
more
than
a
bunch
of
idealistic
students
or
unemployed
losers
who
were
using
the
issue
of
anti-capitalism
or
anti-carbon
as
a
rallying
call
for
their
own
discontent.
So
were
they
a
mere
distraction
again
last
week,
when
they
turned
up
at
a
London
energy
summit
organised
by
The
Economist
magazine
in
the
shadow
of
St
Paul’s
Cathedral?
The
conference
was
a
stimulating
affair,
with
an
array
of
senior
energy
industry
figures
discussing
how
to
build
a
sustainable
future.
But
the
debate
was
given
an
extra
sense
of
urgency
by…