[SunkenCiv]

Pursuant to what PIF wrote, some sidebars:

• Did you see it? Fireball burns bright in skies over mid-Atlantic Tuesday night [2019]
• Amazing Images Capture Giant Fireball Exploding Over the Bering Sea [2019]
• 173 Kiloton Explosion Over Bering Sea Was Asteroid Breaking Up [2019]
• US detects huge meteor explosion [December] [2019]
• Glassy debris points to relatively recent asteroid impact in southeast Asia [2019]
• Prehistory Decoded at Gobekli Tepe
• Evidence from Chile Supports Younger Dryas Extraterrestrial Impact Hypothesis [2019]
• The Day the World Burned [2019]
• Scientists Find Possible Second Subglacial Impact Crater in Northwest Greenland [2019]
• Scientists Have Reduced the Forecast of Sea Level Rise Seven Times Due to Melting of the Antarctic [2019]
• Geoscientists Find Large Impact Crater in Greenland [2018]
• Massive crater under Greenland's ice points to climate-altering impact in the time of humans [2018]
• Evidence for deposition of 10 million tonnes of impact spherules across four continents 12,800 y ago [2013]
• Ice cores reveal huge solar storm struck Earth around 660 BC [2019]
• Air Force silent after 2-kiloton meteor hits Earth near base (Thule AFB, Greenland) [2018]
• Air Force says no damage from Greenland meteor [2018]
• Air Force remains silent after huge meteor hits near US military base [2018]
• How Greenland scorched its underside [2018]

[TigersEye]

Thanks for the ping. The climatic implications of those meteor impacts is very interesting. Certainly easier to give credence to than a minuscule addition to a trace gas in the atmosphere.