Until now, scientists thought plants got all their nitrogen from the atmosphere, but new research suggests Earth’s bedrock supplies as much as a quarter of the planet’s nitrogen.
The discovery, detailed this week in the journal Science, could change researchers’ understanding of the carbon cycle.
Changing the distribution of predators and prey in an ecosystem can turn things upside down.
We all know that biodiversity is an important feature of our planet. Two papers published last week provide fascinating illustrations of why that is so.
Losing Big Fish Means More CO2 in the Atmosphere
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More recent studies show that food system emissions could account for as much as quarter of all human emissions. That is 12% from agricultural production, another 9% from farming induced deforestation, and a further 3% from things like refrigeration and freight.