I started to watch the 4th episode of Surviving Earth on TV

 They said the oceans were 1000 foot higher on earth than now. But, this is 100 million years ago not 65 million years ago like the previous article. So, the oceans started to die because the many underwater volcanoes were pushing up the sea floor and bringing water ever higher onto the land. then the volcanoes warmed the water so much it created algae blooms which got so big it killed off all life in the sea on those areas. So, in half of the oceans of the earth it killed everything in the ocean.

I suppose this is a good lesson to us humans now too because coral is already dying now worldwide slowly or quickly depending upon where we are talking about on earth already.

It turns out 50% of the coral Reefs on earth have already died with more to come. So, it sounds like humans driving cars and starting fires and such might be creating what I was talking about above too.

I can see why younger people are pretty discouraged now around the world.

However, just remember when I was growing up in the 1950s I was told that I would die a soldier in a nuclear war and everyone was going to die on earth.

So, that didn't happen because the human race found a way to not kill each other completely (at least so far).

So, maybe we will find a way to fix some of these problems so humans don't go extinct this century?

It's up to all of us what actually happens you know? 

Begin quotes regarding 50% of coral having died already worldwide:

what percentage of the Coral reefs of earth have died?

 

Earth has lost approximately 50% of its coral reefs since the 1950s, driven primarily by rising ocean temperatures, overfishing, and pollution. 

Historical Loss and Statistics

50% Decline: Broad scientific consensus and major studies (such as those tracked by NOAA Fisheries) show that half of the world's coral cover has vanished over the last several decades. 
14% Recent Disappearance: Research highlighted by the Global Coral Reef Monitoring Network indicates that roughly 14% of the world's reef corals were lost in a rapid die-off phase between 2009 and 2018 alone. 
Future Projections: Scientists warn that up to 70% to 90% of remaining coral reefs could be lost by 2050 if current warming trends persist. 

Main Causes of Reef Death

Marine Heatwaves: Unusually warm ocean water causes mass coral bleaching, stripping corals of vital algae and starving them.
Human Pressures: Coastal development, destructive fishing practices, and agricultural runoff weaken local reef resilience. 

Would you like to know more about global bleaching events or coral reef restoration projects?

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  NASA Science (.gov)

  Vanishing Corals: NASA Data Helps Track Coral Reefs - NASA Science

  Jun 22, 2023 — They are colorful underwater worlds that provide homes to about a quarter of all known marine species. However, coral reefs are in...

  
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  NOAA Office for Coastal Management (.gov)

  Coral Reefs - NOAA Office for Coastal Management

  May 16, 2026 — Mass Bleaching—A Coral Reef Crisis. Higher sea surface temperatures are directly correlated with widespread coral bleaching; “mass...

  
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  NOAA Fisheries (.gov)

  Restoring Coral Reefs | NOAA Fisheries

  Jun 16, 2026 — The world has lost 30 to 50 percent of its coral reefs. Without significant intervention, tropical reef ecosystems could face glob...

  

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