Executive Summary: The Economics of Water: Valuing the Hydrological Cycle as a Global Common Good

Author/s

Mariana Mazzucato, Ngozi Okonjo-Iweala, Johan Rockström and Tharman Shanmugaratnam

Abstract

The world faces a growing water disaster. For the first time in human history, the hydrological cycle is out of balance, undermining an equitable and sustainable future for all.

We can fix this crisis if we act more collectively, and with greater urgency. Vitally too, restoring stability of the water cycle is critical not only in its own right, but to avoid failing on climate change and safeguarding all the earth’s ecosystems, as well as on each and every one of the Sustainable Development Goals (SDGs). It will preserve food security, keep economies and job opportunities growing, and ensure a just and liveable future for everyone.

Decades of collective mismanagement and undervaluation of water around the world have damaged our freshwater and land ecosystems and allowed for the continuing contamination of water resources. We can no longer count on freshwater availability for our collective future. More than 1,000 children under five die every day from illnesses caused by unsafe water and sanitation. Women and girls spend 200 million hours each day collecting and hauling water. Food systems are running out of fresh water, and cities are sinking as the aquifers underneath them run dry.

We have, fundamentally, put the hydrological cycle itself under unprecedented stress, with growing consequences for communities and countries everywhere. Our policies, and the science and economics that underpin them, have also overlooked a critical freshwater resource, the “green water” in our soils and plant life, which ultimately circulates through the atmosphere and generates around half the rainfall we receive on land.

Most gravely, while itself a victim of climate change, the degradation of freshwater ecosystems including the loss of moisture in the soil has become a driver of climate change and biodiversity loss. The result is more frequent and increasingly severe droughts, floods, heatwaves, and wildfires, playing out across the globe. And a future of growing water scarcity, with grave consequences for human security. Nearly 3 billion people and more than half of the world’s food production are now in areas where total water storage is projected to decline.

Citation

Mazzucato, M., N. Okonjo-Iweala, J. Rockström and T. Shanmugaratnam (2024), Executive Summary: The Economics of Water: Valuing the Hydrological Cycle as a Global Common Good, Global Commission on the Economics of Water, Paris.