The report finds that
implementing low-carbon measures in cities could reduce emissions from cities
by 90% and would be worth almost US$24 trillion by 2050.
Climate Emergency, Urban Opportunity is
the most comprehensive report to date to examine how national governments can
achieve equitable and sustainable economic development in cities, which are
home to over half the world’s population and which produce 80% of gross domestic
product and three-quarters of energy-related carbon emissions.
Today, over 55% of
Ghana’s population lives in urban areas, and the share is expected to exceed
70% by 2050. Trillions of dollars will be invested in urban infrastructure to
meet the needs of these new urban residents. The coming decades are therefore
crucial to shape Ghana’s cities
into sustainable, equitable and resilient places where residents enjoy a high
quality of life and access to opportunities.
“City action is
essential in tackling the climate crisis, but cities can’t do it alone.” said Mohammed
Adjei Sowah, Mayor of Accra, and C40 vice chair and Global Covenant of Mayors
Board Member. “We need the support of national governments in Ghana and across
Africa to create the urban systemic change needed. This report outlines the
steps to be taken in order to work together to secure economic prosperity
whilst tackling the climate crisis.”
Science tells us that we
need to reach net-zero emissions by mid-century to avoid dangerous climate
change.
The Urban Opportunity
report shows that it is possible to cut 90% of emissions from cities using
currently available technologies and practices in buildings, transport,
materials efficiency and waste.
Low-carbon measures in cities like Accra, Kumasi, and
Sekondi-Takoradi could collectively deliver over half of the emission
reductions needed to keep global temperature rise below two degrees
Celsius.
These low-carbon
measures would also deliver a significant economic return. They would require
an investment of US $1.8 trillion (approximately 2% of global GDP) per year,
which would generate annual returns worth US $2.8 trillion in 2030, and $7.0
trillion in 2050 based on cost savings alone. Many of these low-carbon measures
would pay for themselves in less than five years, including more efficient
lighting, electric vehicles, improved freight logistics and improved solid
waste management.
“Cities are engines of
growth, innovation and prosperity,” said António Guterres, Secretary-General of the United Nations. “This
report shows how the right investments can build sustainable and liveable
cities and communities that will help us achieve the Sustainable Development
Goals and the objectives of the Paris Agreement. It is possible and realistic
to realize net-zero urban emissions by 2050. But to get there, we will need the
full engagement of city governments combined with national action and support.”
The Urban Opportunity
report demonstrates that compact, connected and clean cities would also provide
a higher standard of living and greater opportunity for all. Investments in
low-carbon measures in cities could support 87 million jobs annually by 2030.
These measures will also reduce choking air pollution, cut chronic traffic
congestion, and improve worker productivity.
Promoting more compact
urban development could also enhance food security and reduce the cost of
services (since less land, materials and energy required when people live
closer together). Urban expansion is a major issue in Ghana, where many people
still depend on natural resources and agriculture for their livelihoods. In the
period 2000-2014, nearly half of the urban expansion in Ghana encroached into
forests, and nearly 10% of the expansion took place into cultivated lands
around cities, which are often irrigated lands producing high-value crops.
Decisions made about
cities in the next decade will put countries like Ghana on a path to prosperity
and resilience - or decline and vulnerability. National governments must seize
this brief window of opportunity, as the costs of inaction could be
devastating.
Over ten percent of the
world’s population – 820 million people – live in coastal zones less than 10m
above sea level, and 86 percent of them live in urban or quasi-urban areas. In
Ghana, over a million people live in coastal urban and quasi-urban areas less
than 10 metres above sea level. These people are especially vulnerable to storm
surges, sea-level rise and other climate hazards.
Many city governments
are already playing an active role in tackling the climate crisis: nearly
10,000 cities and local governments have committed to set emissions reduction
targets. However, even the largest and most powerful city governments can only
deliver a fraction of their mitigation potential on their own: the Urban
Opportunity report shows that, excluding decarbonisation of
electricity, local governments have direct power over less than 1/3 of the
emissions reduction potential in their cities. National and state governments
have power over a further 1/3. More than a 1/3 depends on different levels of
government working together to cut emissions, making the future of cities a
vital collaborative effort.
Launched just ahead of
the U.N Climate Action Summit, the Urban Opportunity report provides the
evidence and confidence that governments need to submit more ambitious
Nationally Determined Contributions in 2020, and to propel inclusive,
zero-carbon cities to the heart of their national development strategies.
Worldwide, fewer than two in five countries have an explicit national strategy
for cities, and only seven countries currently have both a National Urban
Policy and a Nationally Determined Contribution that specifically address
climate mitigation in cities.
This report offers case
studies from around the world where national and local governments have worked
together to rapidly and profoundly transform their cities for the better within
two or three decades, including: Chile, China, Colombia, Denmark, Germany,
India, Indonesia, Namibia, Rwanda and South Korea.
This report also
presents six key priorities for actions that national governments can
take to seize this opportunity:
- Develop an overarching strategy to deliver shared prosperity while reaching net-zero emissions – and place cities at its heart, which can guide all line ministries to incorporate urban development into their approach, de-risk low-carbon investment by providing clear signals to private actors, and empower local governments to go farther and faster.
- Align national policies behind compact, connected, clean cities. Examples include removing land use and building regulations that limit higher, liveable density; banning the sale of fossil fuel-powered vehicles; and adopting green alternatives to steel and cement.
- Fund and finance sustainable urban infrastructure. Examples include eliminating subsidies for fossil fuels and establishing a carbon price of US$50–100 per tonne to sharpen investment incentives; reforming land and property taxes; and shifting national transport budgets from road-building to public and active transport.
- Coordinate and support local climate action in cities. Examples include authorising local governments to introduce climate policies and plans that are more ambitious than national policies; and allocating at least one third of national R&D budgets to support cities’ climate priorities.
- Build a multilateral system that fosters inclusive, zero-carbon cities. Examples include placing cities at the heart of enhanced Nationally Determined Contributions in 2020 and 2025 and ensuring that all international development assistance is aligned with national urban strategies compatible with the Paris Agreement and the 2030 Agenda for Sustainable Development.
- Proactively plan for a just urban transition. Examples include using revenues from carbon taxes or fossil fuel subsidy reform to compensate those who bear the costs of climate action; supporting community-led upgrading of informal settlements to reduce poverty and enhance climate resilience; and anticipating, protecting and supporting the workforce of the future, including by developing transition plans for fossil fuel-based workers and industries.
“In signing the Paris
Agreement, national governments committed to tackling climate change,” said Christiana Figueres, Vice-Chair, Global
Covenant of Mayors and Former Executive Secretary, UNFCCC. “As public
demand for climate action grows, countries can harness the dynamism and
creativity of cities to increase the ambition of their Nationally Determined
Contributions ahead of COP26 next year.”
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