City phosphorus, country phosphorus: can we mitigate P in different environments?

Phosphorus is essential for life, but there is such thing as too much of a good thing. In excess, phosphorus can cause algal blooms, creating dead zones in bodies of water. How do we prevent phosphorus from entering water systems? Katrina Macintosh and her team did a comprehensive review to track phosphorus from diffuse sources to find out.

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Phosphorous the disappearing nutrient

We better rethink our phosphorus use before we run out of it. Phosphorous is a vital nutrient for humans, animals, and plants and is heavily used as a fertiliser on agricultural fields. Our food production relies on deposits that will most likely run out of phosphorus within the next decades, with little prospects of alternatives. How will we be able to fertilise our crops in the future?

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Under a wave of global change, lakes remain placid

Swimmers, boaters, and fishing enthusiasts care about keeping our lakes healthy. As climate and patterns of land development change, scientists are diving into the challenge of understanding how these interacting forces impact water quality. In a recently published paper, researchers assembled a database of thousands of lakes across the northeastern United States to address this question. They found that water quality has remained surprisingly stable over the past twenty years.

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Of feces and fertilizer: residential sources of urban water pollutants

Excess nutrients from pet waste and lawn fertilizer contribute to degraded water quality in cities. Due to the widely dispersed nature of these pollutants in residential areas, decisions made at the household level can go a long way towards solving—or exacerbating—water quality problems.

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