User:Marcou320/PCO2/Emily Smith7 Peer Review

General info

 * Whose work are you reviewing?

(provide username) Marcou320


 * Link to draft you're reviewing
 * User:Marcou320/PCO2


 * Link to the current version of the article (if it exists)
 * PCO2

Evaluate the drafted changes
(Compose a detailed peer review here, considering each of the key aspects listed above if it is relevant. Consider the guiding questions, and check out the examples of what feedback looks like.)

Nice job with the introductory sentence that makes it flow from original article to your add on. Some of your viewpoints could be expanding on like examples of human activities or what exactly are natural sinks? Seems like there is not enough information but that could be fixed with more articles. Some of your sentences are quite lengthy and could be split up to make the flow better.