Archive
Record Renewables Growth Runs Into a Full Grid
The IEA expects the first annual fall in renewable additions in 21 years, the biggest six-year expansion on record, and a grid that is now the main thing standing in the way.
Where Centralised Wastewater Treatment Stops Paying
A study of 10,826 Chinese treatment plants finds that big centralised systems are reaching two limits at once, on easing water scarcity and on paying their way, and that a hybrid model could do the job for up to 37% less.
Who Gets the Water? FAO's Draft Principles
FAO has published draft principles on who may use water and on what terms, a quiet piece of international work that speaks directly to this year's fights over drought, wells and free irrigation.
AI's Water Demand Could Double by 2030
A new report projects data centres' water footprint reaching 9.32 trillion litres by 2030, but the number is only meaningful once you know what it counts, and who is making the case.
Wastewater DNA Shows Which Sewer Is Corroding
Japanese researchers combined bacterial DNA from wastewater with pipe data and machine learning to flag the sewer sections most prone to corrosion – across the whole network, before the camera goes in.
What a Sewer Overflow Does to a Stream
Twelve years of Philadelphia data show that after combined sewer overflows, dissolved oxygen in smaller streams stays low for days, while the big river barely notices.
Only Rainwater Into Windermere: What It Would Cost
An English coalition has costed what it would take to keep every drop of wastewater out of England's largest lake, £3.6–3.7 billion, and its modelling says nothing less ends harmful algal blooms.
Europe's Biomethane Matching Round Opens on 4 November
From 4 November, companies that want to buy biomethane can post their demand on the European Commission's platform and producers can bid from January. Here is what to do now and what the scheme will not give you.
Home Batteries That One Cloud Can Switch Off
The Dutch Authority for Digital Infrastructure warns that the shared cloud back ends behind home batteries, inverters and heat pumps could threaten grid stability, a risk EU rules only partly address.
Hydrogen Will Not Drink Europe Dry
The Joint Research Centre mapped 1,300 hydrogen plants against local water resources and found the EU's targets reachable without a water crisis, though southern Europe and parts of central Europe will need careful planning.