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News in brief
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Fig. 1: Global areas of conservation importance for terrestrial biodiversity, carbon and water. All
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883 Natural climate solutions are high on the UN’s climate
agenda, but as biodiversity conservation targets draw
closer, we are collectively failing to conserve the world’s
biodiversity and halt further global warming.
As part of the Nature Map Project, IIASA researchers
revealed that managing a strategically placed 30% of
land for conservation could yield major achievements,
including safeguarding 62% of the world’s vulnerable
carbon, 68% of all fresh water, and reducing the
extinction risk of over 70% of all terrestrial vertebrate
and plant species.
The study demonstrates that jointly planning for
biodiversity, carbon, and water reveals key broad areas
of importance in a single integrated map, thus going
beyond any ranking of individual assets.
“Our methods, data, and the global ranked maps
developed in this study are meant to be used as a
decision support tool for conservation initiatives,
decision makers, and donors aiming to identify broad
regions for investments. The study lays the groundwork
for a new generation of integrated planning exercises
to inform conservation options across scales,” explains
Martin Jung, who headed the study.
“Our work shows that when it comes to identifying
new areas to manage for conservation, quality is more
important than quantity. Safeguarding biodiversity
will require strategic placement of conservation
interventions using spatial planning tools like those
developed for this project and, crucially, requires
enabling stewards to effectively manage these areas,”
concludes Piero Visconti, a study coauthor.
Global areas of importance
for biodiversity, carbon,
and water
Martin Jung: jung@iiasa.ac.at Piero Visconti: visconti@iiasa.ac.at
Further info: www.iiasa.ac.at/news/21-biodiversity The pandemic-related drop in greenhouse gas emissions
in 2020 was likely the largest on record in a single
year. While notable, this huge drop in emissions does
not provide much information regarding challenges
to meet climate targets, because it does not paint a
clear picture for the future as societies recover.
IIASA researchers examined alternative scenarios of
recovering activity levels and the energy demand
paired with that. This work started from a bottom-up
assessment of changes during lockdowns and then
assessed how selectively maintaining certain
practices might alter climate mitigation challenges.
“Many people have been wondering what the large
changes in societies that came with the pandemic and
its lockdowns mean for climate change. If societies
are just moving back to old practices, then there is
virtually no effect. However, if some of the changes in
energy-use practices persist, climate mitigation
challenges will be affected,” says Jarmo Kikstra, lead
author of the study.
The researchers examined four different scenarios
each with consistent assumptions and changes in
energy demand in buildings, transport, and
industry. Their results indicate that a low
energy demand recovery could help to
partially alleviate some of the challenges
in the energy transition required to stay
on track towards meeting Paris
Agreement climate targets.
“A silver lining to the COVID-19 cloud is
that reaching climate targets becomes a bit
more achievable if we can sustain some of the
lower-carbon practices forced upon us by
lockdowns,” concludes coauthor Charlie Wilson.
COVID-19’s impact on energy
demand could help meet
climate targets
Jarmo Kikstra: kikstra@iiasa.ac.at Charlie Wilson: wilsonch@iiasa.ac.at
Further info: www.iiasa.ac.at/news/21-COVID19
By Neema TavakolianÂ
By Neema TavakolianÂ
Figure: Global areas of conservation importance for terrestrial biodiversity,
carbon and water.
6 Options www.iiasa.ac.atWinter
2021
zurĂĽck zum
Buch options, Band winter 2021"
options
Band winter 2021
- Titel
- options
- Band
- winter 2021
- Ort
- Laxenburg
- Datum
- 2021
- Sprache
- englisch
- Lizenz
- CC BY-NC 4.0
- Abmessungen
- 21.0 x 29.7 cm
- Seiten
- 32
- Kategorien
- Zeitschriften Options Magazine