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James Graham's avatar

Your reference to climate change does not address the subject of what may be prompting costly climate events. Let me point you in the proper direction. Meet the historic, record-smashing Hunga Tonga volcanic eruption of 2022, which I bet you never heard of. A well-endowed underwater Pacific Ocean volcano named Hunga Tonga-Hunga Ha’apai, massively erupted, bigger than any other modern volcanic eruption, even bigger than Mount Pinatubo and possibly Krakatoa.

The erupting lava instantly vaporized fantastic, unimaginable amounts of sea water, which billowed into the atmosphere, changing the water composition of Earth’s atmosphere and heating it up for years. In just a few days, the superheated water from the Hunga Tonga eruption blanketed the entire globe, pole to pole, East to West.

Here is the link to an August, 2022 NASA article about the eruption:

https://www.nasa.gov/feature/jpl/tonga-eruption-blasted-unprecedented-amount-of-water-into-stratosphere

“Unprecedented” is accurate. But that word doesn’t do justice to the scale of this environmental catastrophe. NASA described Hunga Tonga as one of the most dramatic events in modern history. It generated a trans-oceanic tsunami that reached all ocean basins, every continent’s shorelines, and over 40 countries thousands of miles away. It caused the most intense atmospheric explosion ever recorded by modern instruments. One of the most important side effects was that Hunga’s eruption broke all records for injection of water vapor —the most powerful greenhouse gas— into the atmosphere. NASA:

When the Hunga Tonga-Hunga Ha’apai volcano erupted on Jan. 15, 2022, it sent a tsunami racing around the world and set off a sonic boom that circled the globe twice. The underwater eruption in the South Pacific Ocean also blasted an enormous plume of water vapor into Earth’s stratosphere – enough to fill more than 58,000 Olympic-size swimming pools. The sheer amount of water vapor could be enough to temporarily affect Earth’s global average temperature.

The [eruption] not only injected ash into the stratosphere but also large amounts of water vapor, breaking all records for direct injection of water vapor, by a volcano or otherwise, in the satellite era. …The excess water vapor injected by the Tonga volcano … could remain in the stratosphere for several years. This extra water vapor could influence atmospheric chemistry, boosting certain chemical reactions that could temporarily worsen depletion of the ozone layer. It could also influence surface temperatures … since water vapor traps heat. “We’ve never seen anything like it,” said Luis Millán, an atmospheric scientist at NASA’s Jet Propulsion Laboratory in Southern California.

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