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Physical Risk

Climate Change Poses Big Water Risks for Nuclear, Fossil-Fueled Plants

As global warming climbs and humanity's water consumption increases, nuclear and fossil-fueled power plants that rely on freshwater for cooling may not be able to perform at their peak capacity or could be forced to shut down temporarily even as demand for their supplies for indoor cooling and other uses increase, according to researchers and industry experts.

Climate-Driven Water Issues May Increase Pressure on Miners with Tailings Dams

As climate change increases scrutiny on companies around the world, the mining sector is beginning to grapple with the substantial risk its operations present to global water supplies.

Global stakeholder organizations released new standards for tailings dams, which are engineered, massive earthen structures containing mining waste, in early August.

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Coal Risk

Rising Water Stress Risk Threatens U.S. Coal Plants, Largely Clustered in 5 States

Many of the nation's coal-fired power plants, often heavy consumers of water resources, are in areas projected to soon face water stress due to climate change.

Key Takeaways

  • Based on an analysis of data from S&P Global Market Intelligence and the World Resources Institute, power generators in Texas, Indiana, Illinois, Wyoming and Michigan operate about 37.1 GW of coal-fired generation capacity in areas projected to face medium-high to extremely high water stress due to climate change in 2030.

  • An aging coal-fired fleet already retiring en masse due to the economic challenges of competing with renewable energy and natural gas-fired generation may come under even more intense pressure due to competition for limited water resources.

  • While some coal-fired plants use less water than others, many of the technologies that reduce water usage come with trade-offs, including increased air pollution or reduced power plant efficiency.

  • Fossil fuel companies often push the development of carbon capture and storage technology as a climate solution, but that also generally increases costs and water requirements.

Renewables Risk

Climate Impact on Water Supplies Puts Squeeze on Hydropower

Operators of hydropower, one of the cleanest sources of electricity, are increasingly forced to deal with the effects of global warming.

In Norway and other regions, rising temperatures have brought more rain and are causing the glaciers feeding hydropower plants to melt faster, leading to more frequent floods and higher water inflows. At the same time, longer and more intense droughts are depleting water basins from Central Europe to the Western U.S., while the changing climate is also shifting patterns of precipitation and, in some places, remolding the landscape altogether.

Key Takeaways

  • Major utilities with large hydropower portfolios, including Electricité de France SA and EDP - Energias de Portugal SA, have suffered from droughts in recent years, which shaved tens of millions off their earnings.

  • Climate change is also causing seasonal shifts in water availability, concentrating production in parts of the year that do not necessarily match up with high-demand periods.

  • Utilities have started to put in place adaptation measures ranging from increasing the capacity of turbines, to reinforcing river embankments, installing flood protection and building larger spillways to manage excess water.

Sustainable Finance

COVID-19 Highlights Need to Dramatically Ramp Up Financing for UN Water Goal

COVID-19 has created a worldwide need for constant hand-washing, and that has cast a spotlight on the importance of access to clean water. The pandemic has also underscored the lack of investor interest and bankable projects for achieving a key United Nations goal on water sanitation.

In July, the U.N. announced it was accelerating plans to achieve its 2030 water objective because of the slow progress in achieving the goal. A 2019 report by the Organisation for Economic Co-operation and Development found that providing safe drinking water for all by 2030 would require annual financing of about $114 billion — approximately three times current investment levels.

The Case for Investing in Water

As the world population grows and competition for water resources between industry sectors intensifies, nations are set to experience a 40% shortfall in water by 2030.

As these demands for clean water increase, companies involved in water-related business activities stand to grow in the coming years. Allocation to water can be systematically captured by rules-based, transparent index construction. Market participants could utilize index-linked water strategies to gain exposure to water, manage water risk, express their sustainability views, or allocate as part of a broader natural resource theme.

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Water Conflicts are Heightening Geopolitical and Social Tensions Globally

Water crises stand to worsen as the climate changes, leading to more disputes and possible conflicts particularly when two sovereign entities compete for water from the same geological basin. That said, not all transboundary water disputes result in violent conflict, and some can be resolved via financial agreements.

Listen: Beyond The Buzz: The Geopolitics Of Water

In the second episode of Beyond the Buzz, we delve into the topic of water – often referred to as “blue gold.” With water disputes on the rise, the World Economic Forum ranks water scarcity as more impactful than even infectious diseases in its 2020 Global Risks Report.

S&P Global Ratings’ resident water risk expert, Beth Burks, joins Corinne Bendersky and Mike Ferguson in the episode to explore the myriad risks related to water and how they may be exacerbated by climate change going forward.

Listen to the Podcast