Abstract
By
2022,
42.39%
of
the
sub‐Saharan
Africa
(SSA)
population
was
living
in
urban
areas.
This
urbanization
correlates
with
increasing
poverty,
unemployment,
food
insecurity,
environmental
pollution,
and
prevalence
informal
settlements.
These
challenges
worsened
insecurity
during
COVID‐19
pandemic
SSA
cities.
review
analyzed
role
farming
system
as
a
pivotal
means
to
enhance
security,
incorporating
socioeconomic
integration
sustainability.
The
analysis
is
grounded
systematic
using
specific
keywords,
evaluating
46
articles
institutional
reports
related
subject.
results
revealed
that
3.62%
countries
have
implemented
national
governance
policies
minimal
focus
on
farming.
Rapid
urbanization,
growth,
climate
change
are
key
factors
contributing
cities'
vulnerabilities
SSA.
Predominantly
characterized
by
horticultural
practice,
enhances
supply
system,
nutritious
jobs
income
generation,
reduces
transportation
costs,
promotes
consumption
fresh
food,
mitigates
loss
Despite
its
importance,
encounters
several
challenges:
(i)
policy,
(ii)
knowledge
technology
farming,
(iii)
access
land
water,
(iv)
financing
capacity
building
for
(v)
pollution.
need
coordinated
mix
technological
advancements
integrate
innovative
methods,
bolstering
cities’
resilience
insecurity.
Implementing
these
measures
could
advance
achievement
sustainable
development
goals
2
11
Core
Ideas
Only
African
policies,
little
integration.
Limited
innovation,
including
water
access,
hinder
productivity
Urban
nature‐based
solution
jobs,
To
fully
harness
benefits
must
incorporate
it
into
land‐use
planning.
Frontiers in Water,
Journal Year:
2025,
Volume and Issue:
6
Published: Jan. 13, 2025
Rampant
urbanization
and
undervaluing
of
the
natural
ecosystem
have
detrimental
impacts
on
urban
spaces
–
increased
flooding
risk,
air
water
pollution,
stress,
resource
inefficiency,
loss
biodiversity,
risk
ill
health.
Climate
change
further
exacerbates
adverse
urbanization.
Despite
importance
ecosystem,
blue
green
cities
in
India
drastically
decreased.
The
present
study
highlights
degrading
negative
impacts,
need
for
resilience
Indian
cities.
Eco-centric
approaches
like
nature-based
solutions
(NBS)
are
closely
related
to
sustainability
resilience,
offering
a
more
efficient
cost-effective
approach
development
than
traditional
approaches.
paper
explores
concept
NBS,
focusing
services
as
‘living’
‘adaptable’
tool
make
resilient
sustainable
with
many
regional
implementations.
It
also
focuses
role
NBS
achieving
United
Nations’
Sustainable
Development
Goals
(SDGs).
critically
analyses
five
notable
projects
from
different
countries
(USA,
Canada,
Netherlands,
China,
Australia)
addresses
viabilities
intervention
is
observed
that
successful
adaptation
necessitates
eco-centric
policies,
collaborative
research,
adaptive
management
practices,
community
engagement,
strong
emphasis
multi-benefit
approach.
A
proactive
focus
strongly
recommended
cities,
which
includes
raising
an
understanding
value
nature,
introducing
at
planning
stage,
encouraging
investment
ecosystem-based
Comptes Rendus Biologies,
Journal Year:
2025,
Volume and Issue:
348(G1), P. 55 - 69
Published: March 5, 2025
Les
«
solutions
fondées
sur
la
nature
»
(SfN)
sont
aujourd'hui
largement
mentionnées
pour
rendre
les
écosystèmes
anthropisés
plus
durables.
SfN
émanent
des
principes
de
l'ingénierie
écologique
tels
que
conceptualisés
par
H.
T.
Odum
(1962),
c'est-à-dire
reposant
une
approche
centrée
flux
énergétiques
et
l'autorégulation
écosystèmes.
Malgré
leur
popularité
croissante,
mise
en
œuvre
ces
reste
complexe
souvent
orientée
vers
seuls
bénéfices
sociétaux,
avec
faibles
biodiversité.La
crise
climatique
actuelle
nécessite
reconsidération
notre
relation
à
nature,
intégrant
fois
objectifs
sociaux
écologiques
dans
nouvelle
mobilisation
sociétés
crise.
C'est
ce
prône
restauration
socio-écologique,
un
récent
concept
développé
lors
reconstruction
villes
côtières
après
le
tsunami
2011
au
Japon.
Ce
propose
réparation
conjointe
d'une
cohésion
sociale
humaine.
Il
utilise
éléments
l'écosystème
pris
comme
repères
historiques
avant
perturbation,
qui
permet
ancrage
local
reprise
trajectoire
viable.
La
socio-écologique
ne
constitue
pas
activité
classique
d'un
programme,
mais
processus
social
lequel
plusieurs
acteurs
s'impliquent
s'appuyant
uns
autres.Nous
proposons
généraliser
cette
au-delà
situations
post-catastrophe
ou
post-conflit,
modifier
pratiques
d'aménagement
créer
vraies
synergies
entre
vivants
humains
non-humains.
À
titre,
nous
utilisons
réouverture
rivière
Bièvre
région
Paris
exemple
pertinente,
car
elle
implique
communauté
locale
répond
enjeux
écologiques.
Pour
conclure,
formulons
cinq
recommandations
visant
adapter
SfN,
but
résilients
face
aux
changements
globaux
non
seulement
nos
environnements,
aussi
environnements
concernent
l'ensemble
du
monde
vivant
humain,
oubliés
terrain.
En
optant
ainsi
écocentrée,
pourraient
être
phase
définition
initiale
l'IUCN,
devenir
finalement
hauteur
transition
effective
terrain
acteurs.
"Nature-based
solutions"
(NBS)
are
now
widely
referred
to
as
a
way
of
making
anthropized
ecosystems
more
sustainable.
NBS
stems
from
the
principles
ecological
engineering
conceptualized
by
Odum.
based
on
an
approach
centered
energy
flows
and
ecosystem
self-regulation.
Despite
their
growing
popularity,
implementation
these
remains
complex
often
focused
solely
societal
benefits,
with
little
benefit
biodiversity.The
current
climate
crisis
calls
for
reconsideration
our
relationship
integrating
both
objectives
in
new
mobilization
societies
crisis.
This
is
what
advocated
socio-ecological
restoration,
recent
developed
during
coastal
cities
after
Japan.
proposes
joint
repair
human
cohesion,
using
elements
taken
historical
landmarks
before
disturbance,
enabling
anchoring
regain
viable
trajectory.
Socio-ecological
restoration
not
classic
program
activity,
process
which
several
actors
get
involved
relying
each
other,
without
expression
itself.We
generalize
this
beyond
post-disaster
or
post-conflict
situations,
modify
development
practices
create
real
between
living
humans
non-humans.
In
respect,
we
use
reopening
River
region
example
relevant
because
it
involves
community
responds
issues.
conclusion,
make
five
recommendations
adapting
NBS,
view
only
environments
resilient
global
change,
also
those
that
concern
entire
non-human
world
overlooked
field
practices.
By
opting
eco-centric
approach,
NBSs
could
be
line
IUCN's
initial
definition,
ultimately
becoming
Solutions
Based
For
Nature,
challenges
field.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 2, 2025
Abstract
Despite
mounting
evidence
that
heatwaves
aggravate
urban
air
pollution,
with
substantial
impacts
on
public
health,
comparatively
little
research
has
addressed
Sub-Saharan
African
contexts.
In
this
study,
we
focused
Kigali,
Rwanda,
to
assess
the
relationship
between
extreme
heat
events
and
concentrations
of
fine
particulate
matter
(PM₂.₅),
nitrogen
dioxide
(NO₂),
ozone
(O₃)
from
2021
2024.
Using
low-cost
sensors
for
dense
spatiotemporal
coverage,
our
analysis
found
O₃
increased
significantly
during
6
heatwave
peak
values
up
40%
higher
than
non-heatwave
in
afternoon.
Heatwaves
also
resulted
spikes
PM2.5
NO2,
however
diurnal
seasonal
analyses
showed
NO2
dynamics
were
shaped
more
by
local
emissions
sources
temperature
alone.
These
results
highlight
compound
risks
pollution
sub-Saharan
cities,
underscoring
importance
early-warning
systems
robust
policies
account
both
pollution.
addition,
atmospheric
identified
differ
those
observed
high-income
countries,
highlighting
a
critical
need
exploring
intersection
Africa.
