A
person's
carbon
footprint
is
an
indicator
of
how
many
greenhouse
gases
their
activities
produce.
In
the
year
2000,
the
UK's
annual
CO₂
emission
was
557.74
million
tonnes.
By
2020
the
UK's
annual
CO2
emission
was
325.73
million
tonnes.
Calculate
the
percentage
decrease.
Give
your
answer
to
1
decimal
place.
