A study published in Nature Geoscience provides six ways to address nitrogen pollution which can impact our water quality for decades. Although nitrogen fertilisers are critical for growing crops to feed the world, when used in excess they can pollute our water long term, researchers say. A study entitled ‘Managing nitrogen legacies to accelerate water quality improvement’ provides six steps to address nitrogen pollution and improve water quality. The work carried out by the University of Waterloo in Canada provides a roadmap for scientists, policymakers and the public to overcome the challenges associated.