Recent intense heatwaves in India and widespread U.S. droughts have highlighted the need for a global approach to tackling chronic water shortages. The problem is that most governments are not equipped to deal with these challenges of water scarcity, sanitation and climate dynamics.

The White House on Wednesday announced the an Action Plan on Global Water Security, drawing direct links between water scarcity and national security and elevating water security to a core foreign policy priority for the first time.

A third year of drought spells less hydropower, more natural gas, and higher electricity prices. The U.S. Energy Information Administration, or EIA, reported last week that as reservoir levels dip far below their historic averages, electricity generation from California’s hydroelectric dams could be cut in half this summer.

For a century, California and the West have grappled with the job of storing water. The first half of the 20th century was the heyday of western dams; now many of them are aging; they were designed for the needs and values of another era. Is California “dammed out?” Or could increasing reservoir capacity help the state ride out the new era of aridification?

MIT’s Water Innovation Prize helps translate water-related research and ideas into businesses and impact. Each year, student-led finalist teams pitch their innovations to students, faculty, investors, and people working in various water-related industries.

The UK’s vast network of over 525,000km of sewers is notoriously expensive to maintain. A new AI tool is set to improve the efficiency of surveying sewerage systems and has the potential to benefit the entire water industry.

The Rio Grande flows nearly 2,000 miles from its headwaters in the San Juan Mountains in southwestern Colorado to the Gulf of Mexico. It is the primary source of water for more than 13 million agricultural, municipal and industrial water users in Colorado, New Mexico, Texas and northern Chihuahua, Mexico. A new study finds that peak runoff on the Rio Grande could arrive earlier in the season, negatively impacting a watershed where demand already exceeds supply.

California’s Water Resilience Portfolio Initiative is a multi-billion dollar effort that encourages different water utilities and irrigation districts to work together to build shared infrastructure to reduce the effects of droughts, but a number of questions remain regarding how best to structure these agreements.

From the Euphrates to the Mekong, dams that ensure one country’s water supply risk leaving others parched. But shared water resources can be a source of peace as well as conflict.