This <a href="https://en.wikipedia.org/wiki/carbon_cycle" class="extiw" title="en:carbon cycle">carbon cycle</a> diagram shows the storage and annual exchange of carbon between the <a href="https://en.wikipedia.org/wiki/Earth%27s_atmosphere" class="extiw" title="en:Earth's atmosphere">atmosphere</a>, <a href="https://en.wikipedia.org/wiki/hydrosphere" class="extiw" title="en:hydrosphere">hydrosphere</a> and <a href="https://en.wikipedia.org/wiki/geosphere" class="extiw" title="en:geosphere">geosphere</a> in gigatons - or billions of tons - of Carbon (GtC). Burning fossil fuels by people adds about 5.5 GtC of <a href="https://en.wikipedia.org/wiki/carbon" class="extiw" title="en:carbon">carbon</a> per year into the atmosphere.
<ul><li>derivative work: <a href="//commons.wikimedia.org/wiki/User:FischX" title="User:FischX">FischX</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.svg" title="File:Carbon cycle-cute diagram.svg">Carbon_cycle-cute_diagram.svg</a>: *derivative work: <a href="//commons.wikimedia.org/wiki/User:FischX" title="User:FischX">FischX</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.jpeg" title="File:Carbon cycle-cute diagram.jpeg">Carbon_cycle-cute_diagram.jpeg</a>: User <a href="https://en.wikipedia.org/wiki/User:Kevin_Lafamiglia" class="extiw" title="en:User:Kevin Lafamiglia">Kevin Saff</a> on <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.jpeg" title="File:Carbon cycle-cute diagram.jpeg">Carbon_cycle-cute_diagram.jpeg</a>: User <a href="https://en.wikipedia.org/wiki/User:Kevin_Lafamiglia" class="extiw" title="en:User:Kevin Lafamiglia">Kevin Saff</a> on <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.svg" title="File:Carbon cycle-cute diagram.svg">Carbon_cycle-cute_diagram.svg</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Carbon_cycle-cute_diagram.jpeg" title="File:Carbon cycle-cute diagram.jpeg">Carbon_cycle-cute_diagram.jpeg</a></li></ul>