Policy articles from across Nature Portfolio

A locally tailored, big-push intervention to educate unmarried adolescent girls in 18 communities in northern Nigeria reduced rates of marriage from 86% to just 21%. Interventions that address complex, entrenched social problems from various angles simultaneously might be considerably more effective than smaller-scale, cheaper alternatives are.

Experts from 45 countries find that implementation and coordination, not ecological knowledge, form the main barrier to restoring free-flowing rivers, according to a study using a modified Delphi process to identify and rank research priorities for river restoration.

Limited methods and a lack of guidance around diagnostic criteria mean that many scientists are reluctant to use the term addiction.

Even when artificial-intelligence tools aid individuals’ decision-making, they can quietly de-skill whole professions by narrowing how uncertainties and values are debated.

Following nature’s patterns, not fighting them, is the way forward for the built environment.

Lawyer who was instrumental in securing protection for the high seas and the deep ocean.

As the country looks to commercial companies to drive innovation, it has a golden opportunity to support open science and increase its output in key areas.