Ohio River Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.Anti-spam check. Do not fill this in! ==Climate transition zone== The Ohio River is a climatic transition area, as its water runs along the periphery of the [[humid continental]] and [[humid subtropical]] climate areas. It is inhabited by fauna and flora of both climates. In winter, it regularly freezes over at [[Pittsburgh]] but rarely farther south toward [[Cincinnati]] and [[Louisville, Kentucky|Louisville]]. At [[Paducah, Kentucky]], in the south, at the Ohio's confluence with the Tennessee River, it is ice-free year-round. In the 21st century, with the 2016 update of climate zones,<ref name="Beck">{{cite journal |last1=Beck |first1=Hylke E. |last2=Zimmermann |first2=Niklaus E. |last3=McVicar |first3=Tim R. |last4=Vergopolan |first4=Noemi |last5=Berg |first5=Alexis|author6-link=Eric Franklin Wood |last6=Wood |first6=Eric F. |title=Present and future Köppen-Geiger climate classification maps at 1-km resolution |journal=Scientific Data |date=October 30, 2018 |volume=5 |pages=180214 |doi=10.1038/sdata.2018.214 |pmid=30375988 |pmc=6207062 |language= en |issn=2052-4463 |bibcode=2018NatSD...580214B}}</ref> the humid subtropical zone has stretched across the river, into the southern portions of [[Ohio#Climate|Ohio]], [[Indiana#Climate|Indiana]], and [[Illinois#Climate|Illinois]]. Summary: Please note that all contributions to Christianpedia may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here. You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Christianpedia:Copyrights for details). Do not submit copyrighted work without permission! Cancel Editing help (opens in new window) Discuss this page