we use energy for three main things: electricity production, heating, and transport. For the first two, we have (state verb) options such as solar and wind power, or natural gas. But oil is still the world's number one source of energy, and for transport at least, three is currently no alternative. In China, domestic energy consumption is going up (year by year tells us this is a gradual change over time) year by year, and demand in similar regions is catching up fast. we know how to use energy more efficiently now than in the past but the worldwide rise in demand is causing cornermen amongst experts. some experts think that oil supplies will start to fall within the next twenty years. More experts agree that we need to find a new source of energy.
we
use
energy
for three main things: electricity production, heating, and transport. For the
first
two, we have (state verb) options such as solar and wind power, or natural gas.
But
oil is
still
the world's number one source of
energy
, and for transport at least, three is
currently
no alternative. In China, domestic
energy
consumption is going up
(year
by
year
tells
us this is a gradual
change
over time)
year
by
year
, and demand in similar regions is catching up
fast
.
we
know how to
use
energy
more
efficiently
now
than in the past
but
the worldwide rise in demand is causing
cornermen
amongst experts.
some
experts
think
that oil supplies will
start
to fall within the
next
twenty years. More experts
agree
that we need to find a new source of
energy
.