Over Half of World's Largest Cities Face Water Scarcity
A stunning 38 out of 100 largest cities globally are now experiencing "extremely high water stress", according to a groundbreaking analysis by Watershed Investigations and the Guardian. This means that public water supply and industrial withdrawals have reached or exceeded available supplies, largely due to poor management of water resources exacerbated by climate change.
Cities like Beijing, New York, Los Angeles, Rio de Janeiro, and Delhi are among those facing extreme stress, while London, Bangkok, and Jakarta are classified as being highly stressed. However, satellite data reveals that cities in regions showing strong wetting trends include Tokyo, Lagos, and Kampala, where water levels have been rising over the past two decades.
Conversely, places like Chennai, Tehran, and Zhengzhou are experiencing strong drying trends, affecting approximately 1.1 billion people living in major metropolitan areas located in these drying zones, compared to around 96 million in regions showing wetting trends.
Climate change is a significant contributor to water scarcity, but poor management of water resources often exacerbates the issue. The United Nations University Institute for Water Environment and Health has warned that the world has entered a state of "water bankruptcy", where deterioration of some water resources has become permanent and irreversible.
The World Bank Group has also sounded the alarm, stating that global freshwater reserves have plummeted sharply over the past 20 years. According to the group, the planet is losing around 324 billion cubic metres of freshwater every year, enough to meet the annual needs of approximately 280 million people.
By 2055, England is projected to require an additional 5 billion litres of water per day to meet public water supply demand, more than a third of the current 14 billion litres. The government has recently published a water white paper aimed at overhauling the water system, including establishing a new chief engineer role and new powers for a water regulator.
Experts warn that without sustained monitoring and better management, water scarcity will continue to worsen, posing significant challenges to urban centres like those in drying zones, where water shortages could become a pressing issue.
A stunning 38 out of 100 largest cities globally are now experiencing "extremely high water stress", according to a groundbreaking analysis by Watershed Investigations and the Guardian. This means that public water supply and industrial withdrawals have reached or exceeded available supplies, largely due to poor management of water resources exacerbated by climate change.
Cities like Beijing, New York, Los Angeles, Rio de Janeiro, and Delhi are among those facing extreme stress, while London, Bangkok, and Jakarta are classified as being highly stressed. However, satellite data reveals that cities in regions showing strong wetting trends include Tokyo, Lagos, and Kampala, where water levels have been rising over the past two decades.
Conversely, places like Chennai, Tehran, and Zhengzhou are experiencing strong drying trends, affecting approximately 1.1 billion people living in major metropolitan areas located in these drying zones, compared to around 96 million in regions showing wetting trends.
Climate change is a significant contributor to water scarcity, but poor management of water resources often exacerbates the issue. The United Nations University Institute for Water Environment and Health has warned that the world has entered a state of "water bankruptcy", where deterioration of some water resources has become permanent and irreversible.
The World Bank Group has also sounded the alarm, stating that global freshwater reserves have plummeted sharply over the past 20 years. According to the group, the planet is losing around 324 billion cubic metres of freshwater every year, enough to meet the annual needs of approximately 280 million people.
By 2055, England is projected to require an additional 5 billion litres of water per day to meet public water supply demand, more than a third of the current 14 billion litres. The government has recently published a water white paper aimed at overhauling the water system, including establishing a new chief engineer role and new powers for a water regulator.
Experts warn that without sustained monitoring and better management, water scarcity will continue to worsen, posing significant challenges to urban centres like those in drying zones, where water shortages could become a pressing issue.