Urban waters

From an estimated population of 9.7 billion inhabitants by 2050, about 60% will be living in urban areas. At present, 2021, close to 4 billion humans live in cities; Earth is therefore already a Urban Planet. The demands for water, energy, habitat and food in the next 30 years will rise increasing t...

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Bibliographic Details
Published in:Brazilian journal of biology 2023, Vol.83, p.1-2
Main Authors: Tundisi, J.G, Wendland, E.C, Mendiondo, E.M
Format: Article
Language:English
Subjects:
21st century
Air pollution
Cities
Citizen participation
Climate change
Environmental economics
Floods
Groundwater
Hydrologic cycle
Innovations
Population statistics
Science
Society
Sustainability
Urban areas
Urbanization
Water pollution
Water quality
Water resources
Water treatment
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Summary:From an estimated population of 9.7 billion inhabitants by 2050, about 60% will be living in urban areas. At present, 2021, close to 4 billion humans live in cities; Earth is therefore already a Urban Planet. The demands for water, energy, habitat and food in the next 30 years will rise increasing the pressure and valuation on water resources in cities. Cities alter the environment in several ways: changing the water cycle; increasing of water and air pollution; augmenting of impervious surfaces and decreasing infiltration to ground water. Moreover, uncontrolled urbanization provokes flood disaster risks, promoting urban catastrophic floods.
ISSN:1519-6984
1678-4375
DOI:10.1590/1519-6984.250000