The following video is brought to you courtesy of the The Economist YouTube Channel. Click the video below to watch it now.

00:00 – How “dead zones” threaten the ocean
00:52 – Why was there “sea snot” in Turkey?
03:20 – What causes low oxygen in the ocean?
05:50 – How nutrients pollute the ocean
06:37 – Why farming is one of the main polluters
08:46 – The bizarre harm to marine life
10:24 – How “dead zones” contribute to climate change
12:07 – How regenerative farming can reduce pollution
16:00 – Nutrient pollution must be tackled urgently
Sign up to our fortnightly newsletter on climate change: https://econ.st/3pSnqt7
Find all of our climate change coverage: https://econ.st/33gSs6g
The Economist explains: How many oceans are there? https://econ.st/3qbmmRt
Can conservation save the ocean? Watch our film: https://econ.st/31XDTE2
Sir David Attenborough and four other leading thinkers discuss how they would use $1bn to save the ocean: https://econ.st/3GF8qp9
Watch our film about how to stop plastic getting into the ocean: https://econ.st/3IPyK22
The known unknowns of plastic pollution: https://econ.st/3dNyEcO
Covid-19 has led to a pandemic of plastic pollution: https://econ.st/3ykJhgK
Watch our film about whether eco-tourism can help save the ocean: https://econ.st/3DXKxHW
How overfishing is harming the ocean: https://econ.st/31Y8gdq
The world is waking up to the scourge of illegal fishing: https://econ.st/3dMl0GL
Where is the most over-fished sea in the world? Watch our film to find out: https://econ.st/3IFd5JL”