Fact Check: Photo Of Green Mississippi River Water Meeting The Gulf Is NOT A Good Sign

Fact Check

  • by: Sarah Thompson
Fact Check: Photo Of Green Mississippi River Water Meeting The Gulf Is NOT A Good Sign Dead Zone

Does this photo show Mississippi River water meeting but never mixing with the salt water of the Gulf of Mexico? No, that's not true: This photo shows river water which has reached the Gulf of Mexico and has flowed out over the top of the denser Gulf salt water. The abundance of nutrients in the river water, much of them from agriculture, can host an algae bloom that can deplete the available oxygen in the saltwater Gulf as the algae decomposes, a condition called hypoxia. This results in problems for the marine life that must either swim away if it can, or die. For this reason, the area of oxygen-depleted water is known as a "dead zone." The dead zone happens every summer. Natural and man-made conditions far upstream affecting the runoff in the Mississippi watershed can determine how large the dead zone in the Gulf of Mexico will be.

The image in this meme dates back to at least 2015 when it was filmed from the air in a video posted on YouTube. The photo has circulated as a meme since 2016 and resurfaced in a post (archived here) published on Facebook on June 28, 2021. The caption in the meme reads:

Where the Mississippi River meets the gulf not mixing ever with one another, and people say there isn't a God. If he can tell the ocean where to stop then he can surely take care of anything against me or you!...MY GOD IS AWSOME

This is what the post looked like on Facebook at the time of writing:

Facebook screenshot

(Source: Facebook screenshot taken on Tue Jun 29 14:36:49 2021 UTC)

This identical photo was used in an August 22, 2019, Facebook post by "EPA Water" announcing, in a news release, "EPA Provides $1.2 Million to Hypoxia Task Force States and Continues to Promote National Dialogue to Reduce Excess Nutrients and Enhance the Nation's Waters."


(Source: Facebook screenshot taken on Tue Jun 29 17:59:56 2021 UTC)

Scientists at NOAA (National Oceanic and Atmospheric Administration) have been mapping the oxygen levels and varying size of the dead zone since 1985. The average dead zone surface area is over 5,000 square miles. There is a goal to reduce the size of the dead zone to below 2,000 square miles. This almost happened in 2020 when it was only 2,116 square miles. The largest dead zone on record surpassed the forecast and grew to 8,776 square miles in 2017. NOAA works to forecast the size of the dead zone, and on June 8, 2021, the agency predicted it would be 4,880 square miles this year, smaller than the five-year average.

Lead Stories has written about the dramatic color contrast of another river plume -- where the Fraser River joins the Strait of Georgia near Vancouver Island in Canada. This Mississippi River meeting the Gulf of Mexico photo appears in that article because in the past it has also been misidentified as the Gulf of Alaska.

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  Sarah Thompson

Sarah Thompson lives with her family and pets on a small farm in Indiana. She founded a Facebook page and a blog called “Exploiting the Niche” in 2017 to help others learn about manipulative tactics and avoid scams on social media. Since then she has collaborated with journalists in the USA, Canada and Australia and since December 2019 she works as a Social Media Authenticity Analyst at Lead Stories.


Read more about or contact Sarah Thompson

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