New study finds generative AI can brainstorm objectives but needs human expertise for decision quality
Peer-Reviewed Publication
Updates every hour. Last Updated: 11-Nov-2025 23:11 ET (12-Nov-2025 04:11 GMT/UTC)
Do renewables always make power cheaper? In the UK, it depends on how much is on the system. Using causal machine learning on 2018–2024 market data, researchers find wind’s causal effect is U-shaped: at low penetration, +1 GWh can reduce prices by up to £7/MWh, the effect weakens mid-range, then strengthens again at higher penetration. The impacts have grown over time as renewables’ share rose, providing an evidence base for market design and support policy. These findings support adaptive support schemes and capacity planning that reflect changing marginal value rather than one-size-fits-all assumptions.
A globally cited statistic about the role of irrigation for food security that has formed foundational evidence for policy making and scientific research is used on a ‘hearsay’ basis and is based on weak evidence, according to a new study published in PNAS Nexus.