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DEVELOPED and developing countries must pose a 10-fold
increase in carbon productivity in the coming decades in
order to stabilize greenhouse gases (GHGs) and maintain
economic growth in the world, according to a study
released by the McKinsey Global Institute (MGI).
In the
report titled “Curbing Climate Change and Sustaining
Economic growth,” MGI and McKinsey’s Climate Change
Special Initiative said a 10-fold increase in carbon
productivity is similar to the magnitude of
labor-productivity increases of the Industrial
Revolution and could be termed a “carbon revolution.”
The MGI
report said carbon productivity must increase to $7,300
gross domestic product (GDP) per ton of carbon dioxide
equivalents (CO2e) by 2050 from around $740 GDP per ton
of CO2e today. CO2e is a common measure of GHGs.
If a
carbon revolution does not happen, MGI warned that the
consequences will be stark. In order to meet the
abatement target of reducing GHGs, each person on the
planet has a carbon budget of 6 kilograms of CO2e every
day.
This
would mean, according to MGI, that each person will be
forced to choose between a 40-kilometer car ride, a day
of air conditioning, buying two new T-shirts without
driving to the shop or eating only two meals.
“Without
a major boost in carbon productivity, stabilizing
greenhouse-gas emissions would require a major drop in
lifestyle for developed countries and would hinder
economic development in low-income countries,” MGI said.
However,
MGI said a carbon revolution must be achieved in
one-third of the time that economic transformation took
in the Industrial Revolution if the world is to maintain
current levels of economic growth while ensuring that
CO2e levels of below 500 parts per million volume (ppmv)
are kept.
Further,
in the report, MGI said that around 450 ppmv must also
be maintained in the long term.
This
level, MGI said, is the maximum that can be allowed
without significant irreversible risks to the climate.
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