Yes: we’ll have to invest a lot but in the long term this could
save the planet as well as huge sums of money, according to the IEA.
According to
the International Energy Agency if the world replaced fossil fuels with
renewables as its primary source of energy by 2050
the global economy will have
saved US$ 71 trillion.
The IEA’s
soberly named biennial report Energy Technology Perspectives 2014 casts a look
at the energy sector over the next 40 years.
While these
are the long term net gains, there are also some seriously costly investments
needed to spur these changes.
The IEA
estimates that an additional US$44 trillion of investment will be needed to
meet 2050 carbon reduction targets.
This
represents an increase of 22% from the figure the Agency gave two years ago
($36 trillion).
The
investments would guarantee that the average temperature rise since the
industrial revolution is limited to 2-degrees Celsius.
According to
the Agency investments in renewables,
nuclear power and carbon capture and storage would – in the long term – yield
more than $115 trillion in fuel savings.
According to
Maria van der Hoeven - executive director of the Paris-based IEA – coal use if
still growing and outpacing that of renewable energies, while the intensity of
electricity emissions has remained stable for the past two decades, though
there has been some progress in certain areas.
The agency
claims that tripling the use of renewable energy, nuclear
power and carbon capture and storage by 2050 would be crucial to reaching the
goal carbon reduction goal.
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