steel, plastics and food. In the IRENA report, iron and
steel production, chemical and petrochemical
production, cement and aluminum production are
among the most energy-intensive and difficult to
decarbonize industries. Steel, cement, plastic and
ammonia are the key materials for the EU economy,
accounting for about 20% of all greenhouse gas
emissions, according to a Material Economics report
on emission reduction opportunities in EU heavy
industry. In Russia, non-fossil fuel emissions from
aluminum production accounted for 1.3% of all
industrial emissions in 2018, and aluminum was not
among the top emitters. At the same time, the
aluminum industry is one of the most energy-
consuming, and Russia ranks second in the world in
aluminum production. All things considered, the
Russian Green Deal circular economy program is
focused on reducing emissions from metallurgy,
cement, ammonia and food production. Systematic
work to reduce these emissions is currently not being
carried out in Russia.
3 RESULTS AND DISCUSSIONS
The main sources of emissions in the manufacturing
sector are (Shakhgiraev, 2019; Kadner, 2021;
Maliene, 2010):
1. High-temperature processes. For example, the
melting and shaping of steel and the production
of cement clinker require temperatures of 850–
1600 °C. Electricity is already being used for
some of these processes, notably in electric arc
furnaces for steelmaking, but in most cases
technology does not yet allow it to be used.
2. Emissions during production. In the production
of steel, cement and plastics, carbon is used not
only to provide high-temperature conditions,
but also as an integral part of the chemical
process, which leads to significant carbon
dioxide emissions. For example, in cement
production, calcining limestone to produce
calcium oxide releases a large amount of
carbon contained in the rock. Eliminating such
outliers is the most difficult. To reduce these
emissions, the fundamentals of manufacturing
processes need to be changed.
3. Emissions after end-of-life. Currently, the vast
majority of materials, with the exception of
metals, end up in landfills or incineration at the
end of their lives, releasing large amounts of
greenhouse gases. For example, when burning
plastic, an average of 2.7 kg of CO₂ is released
per 1 kg of plastic.
The recycling of materials usually requires much
less energy than the production of new materials. For
example, the production of recycled steel requires
only 10-15% of the energy that would be spent on the
production of new steel. When processing materials,
it is usually possible to use electricity, which can be
produced by renewable energy sources. Another
important aspect of recycling is that it reduces not
only greenhouse gas emissions from burning fossil
fuels, but also emissions from manufacturing
processes, which are particularly difficult to reduce.
Thus, in industrial sectors, the most important
principles should be (1) reducing waste generation,
(2) significantly increasing the utilization rates of
assets, especially buildings and equipment (i.e.
reducing the need for new cement, steel and
aluminum), (3) recycling in the use of products and
the use of secondary resources. This will reduce the
demand for new steel, aluminium, cement, plastic,
and hence the emissions from their production. The
first group of measures can be implemented by
reducing the generation of waste at all stages of
production and consumption of products and
increasing the efficiency of resource use. The second
group of measures can be implemented through the
promotion of product sharing (sharing), the
development of rental services, and the extension of
the service life of goods. As for recycling, for some
materials (for example, for steel) it has already been
established, and electricity, including from renewable
sources, can be used to provide energy. But there is
significant potential to increase the share of steel
recycled and the quality of scrap metal collected.
Recycling of other materials, such as plastic, needs to
be significantly increased through the development of
collection and sorting of plastic waste. Emissions
from ammonia production can be reduced primarily
through the development of agriculture with minimal
use of fertilizers - regenerative or organic agriculture
(Kadner, 2021).
The solution to this problem is closely related to
the transition to sustainable agricultural practices and
sustainable diets. The Russian organic food market is
at the initial stage of development. Sustainable diets,
which should be understood as diets with a higher
content of plant products compared to animals, are
not common in Russia. At the same time, according
to available estimates, about 75% of an individual's
carbon footprint falls on three areas: food, housing,
mobility. Therefore, along with the use of energy
from fossil fuels and travel by private cars and planes,
the overconsumption of meat and dairy products are
among the areas for action with the greatest potential
for reducing lifestyle-related greenhouse gas