Availability of nitrogen to plants is declining as climate warms

Researchers have found that global changes, including warming temperatures and increased levels of carbon dioxide in the atmosphere, are causing a decrease in the availability of a key nutrient for terrestrial plants. This could affect the ability of forests to absorb carbon dioxide from the atmosphere and reduce the amount of nutrients available for the creatures that eat them. https://www.sciencedaily.com/releases/2018/10/181022135722.htm