Arctic bird guano helps seed clouds which reflect sunlight back into space:

https://www.sciencedaily.com/releases/2016/11/161117145110.htm

"Associate Professor of Atmospheric Science Jeff Pierce and graduate student Jack Kodros present evidence linking ammonia emissions from summertime Arctic seabird-colony excrement, called guano, to newly formed atmospheric aerosol particles. These particles can in turn influence Arctic cloud properties and their effects on climate.

"Clouds play a key role in modulating Arctic temperature; thus, understanding factors that influence clouds is essential, Pierce says. Central to the development of clouds is the availability of cloud condensation nuclei -- small atmospheric particles around which water can condense.

:They report the presence of summertime bursts of atmospheric particles linked to ammonia emissions from seabird-colony guano. These particles can spread throughout the Arctic, fostering cloud-droplet formation, and in turn reflect sunlight back to space for a net cooling effect.

"'This newly identified and fascinating ecological-atmospheric connection highlights the interconnectedness of the many components of Earth's climate system," Pierce said."

Comment: Everything on Earth is interconnected to keep this planet stable for life to continue. Looks like it is planned to me.