Microplastics
(MPs)
are
carbon-rich
polymers
that
ubiquitous
in
the
environment.
With
increase
of
plastic
production,
microplastic
pollution
may
be
exacerbated
and
result
significant
changes
microbial
communities
biogeochemical
processes
such
as
carbon
cycling,
eventually
impacting
greenhouse
gas
emission
storage
terrestrial
ecosystems.
However,
current
research
on
effect
MPs
soil
cycling
is
still
limited,
there
a
lack
systematic
review
scattered
information
obtained
from
previous
studies.
Accordingly,
this
provides
overview
knowledge
effects
gives
future
suggestions.
Emerging
evidence
indicates
could
affect
stability
CO2
CH4
by
modifying
physicochemical
microbiological
properties;
though
biodegradable
often
exhibit
greater
than
nonbiodegradable
ones,
specific
highly
dependent
type,
size
concentration.
The
mechanisms
MPs'
impact
cycles
remain
elusive,
which
discussed
mainly
perspective
changes,
including
biomass,
community
composition,
key
enzymes
functional
genes
associated
with
metabolism.
Further
needed
to
elucidate
whether
have
positive
priming
decomposition
biotic
abiotic
involved.
This
paper
helps
researchers
gain
clearer
picture
how
through
way
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(10), P. 3926 - 3926
Published: May 8, 2024
Polyethylene
terephthalate
(PET)
is
widely
used
as
a
primary
plastic
packaging
material
in
the
global
socio-economic
system.
However,
research
on
metabolic
characteristics
of
PET
industry
across
different
countries,
particularly
regarding
entire
life
cycle
supply
chain
PET,
remains
insufficient,
significantly
hindering
progress
addressing
pollution
worldwide.
This
study
employs
Life
Cycle
Assessment-Material
Flow
Analysis
(LCA-MFA)
method
to
comprehensively
analyze
environmental
impacts
plastics,
with
focus
processes
from
production
disposal
12
regions
(covering
41
countries)
2020.
By
constructing
13
scenarios
and
analyzing
development
trajectory
plastics
2020
2030,
this
provides
scientific
evidence
specific
strategies
for
waste
reduction
emission
measures
industry.
Overall,
2020,
(41
consumed
7297.7
kilotons
(kt)
virgin
resin
1189.4
kt
recycled
resin;
23%
was
manufactured
into
materials,
42%
went
landfills,
35%
incinerated.
In
emitted
approximately
534.6
million
tons
(Mt)
carbon
dioxide
equivalent
per
year,
emissions
accounting
46.1%,
manufacturing
stage
44.7%,
treatment
9.2%.
Research
indicates
that
under
scenario
controlled
demand,
resource
efficiency
improvement
are
most
effective,
potentially
reducing
by
up
40%.
Cambridge Prisms Plastics,
Journal Year:
2024,
Volume and Issue:
2
Published: Jan. 1, 2024
Abstract
Microplastics
(MPs)
are
carbon-rich
polymers
that
ubiquitous
in
the
environment.
With
increase
of
plastic
production,
microplastic
pollution
may
be
exacerbated
and
result
significant
changes
microbial
communities
biogeochemical
processes
such
as
carbon
cycling,
eventually
impacting
greenhouse
gas
emission
storage
terrestrial
ecosystems.
However,
current
research
on
effect
MPs
soil
cycling
is
still
limited,
there
a
lack
systematic
review
scattered
information
obtained
from
previous
studies.
Accordingly,
this
provides
overview
knowledge
effects
gives
future
suggestions.
Emerging
evidence
indicates
could
affect
stability
CO
2
CH
4
by
modifying
physicochemical
microbiological
properties;
though
biodegradable
often
exhibit
greater
than
nonbiodegradable
ones,
specific
highly
dependent
type,
size
concentration.
The
mechanisms
MPs’
impact
cycles
remain
elusive,
which
discussed
mainly
perspective
changes,
including
biomass,
community
composition,
key
enzymes
functional
genes
associated
with
metabolism.
Further
needed
to
elucidate
whether
have
positive
priming
decomposition
biotic
abiotic
involved.
This
paper
helps
researchers
gain
clearer
picture
how
through
way
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(37), P. 16386 - 16398
Published: Sept. 5, 2024
Plastic
additive-related
chemicals,
particularly
in
polyvinyl
chloride
(PVC)
plastics,
have
become
a
key
issue
plastic
pollution.
Although
addressing
pollution
through
the
life-cycle
approach
is
crucial,
environmental
impacts
of
typical
chemicals
PVC
plastics
during
cradle-to-gate
stage
remain
unexplored.
Consequently,
managing
these
additives
remains
challenging.
Herein,
23
and
six
products
were
evaluated
throughout
using
life
cycle
assessment-material
flow
analysis
(LCA-MFA)
coupled
model.
The
results
indicate
that
significantly
contribute
to
across
various
end
point
indicators,
ranging
from
8.7
40.6%.
Additionally,
scenario
(SA)
reveals
conventional
strategies
for
may
not
be
highly
effective
mitigating
associated
with
additives.
Specifically,
compared
primary
polymers,
exhibit
4
13%
lower
mitigation
potential
under
same
policy
scenarios.
However,
technical
adjustment
targeting
show
12
39%,
suggesting
guiding
additive
industry
toward
green
transformation
strategy
reducing
impacts.
Global
demand
for
polyurethanes
(PUs)
has
steadily
been
increasing.
However,
knowledge
about
PUs'
anthropogenic
cycles
and
greenhouse
gas
(GHG)
emissions
remains
incomplete,
hindering
effective
decision-making.
This
study
employs
dynamic
material
flow
analysis
to
trace
PU
in
China
(accounting
45%
of
the
global
market
2022)
from
1958
2022,
combined
with
scenario
pollution
mitigation.
Given
technological
advancements
production
processes,
volume
PUs
2022
was
11
times
that
2000.
The
in-use
stocks
surged
9.09
×
1010
kg
construction
sectors
contributing
over
30.0%.
textiles,
apparel,
footwear
sector
generated
greatest
waste,
accounting
41.4%
total
2022.
Approximately
65.5%
plastic
were
microplastics,
mainly
concentrated
soil.
stage,
especially
foams
(1.88
CO2e
2022),
dominated
GHG
emissions.
Scenario
suggests
interventions
targeting
all
stages
could
reduce
by
30.0%
15.0%
2060,
respectively.
findings
offer
data-driven
insights
sustainable
development
industry
combating
crisis.
International Journal of Systems Science Operations & Logistics,
Journal Year:
2024,
Volume and Issue:
11(1)
Published: Oct. 23, 2024
Considering
the
increasing
emphasis
on
sustainable
development,
global
warming
effects
have
received
attention
for
properly
managing
enterprise
activities
such
as
manufacturing,
energy
utilisation,
resource
consumption,
and
carbon
emissions.
The
effect
of
greenhouse
gases
generated
by
emissions
is
most
significant.
This
study
develops
a
dual-channel
supply
chain
system
that
consists
duopoly
manufacturers
two
common
retailers
investigates
pricing
policy,
decision-maker's
mental
accounting,
emission
reduction
investments
channel
members'
decisions.
We
conduct
numerical
experiment,
demonstrating
in
decrease
while
enhancing
market
competitiveness
profitability.
primarily
because
customers
prefer
green
products
exhibit
higher
brand
loyalty,
which
makes
them
willing
to
pay
premium
prices
environmentally
friendly
products.
Additionally,
leader-follower
model
shows
dominant
role
leaders
investment
decisions,
multichannel
structure
highlights
importance
synergy.
contributes
field
examining
intra-
inter-channel
competition
issues
among
members
within
multi-channel
structure.
analysis
facilitates
practical
profit-maximisation
decision-making.
