[SunkenCiv]

Thanks! From the Sahara keyword:

• The ups and downs of a mega-lake (rest of this list posted here)
• Entomologist Confirms First Saharan Farming 10,000 Years Ago [2018]
• More Evidence of a Wet Sahara [2017]
• Fossil of massive crocodile found on edge of Sahara desert [2016]
• A Carpet of Stone Tools in the Sahara [2015]
• Ancient Africans used 'no fly zones' to bring herds south [2015]
• NASA video shows how dust from Sahara Desert fuels Amazon rain forest [2015]
• Violence and climate change in prehistoric Egypt and Sudan [2014]
• Ancient bone fragments help describe diet, health of Saharan ancestors [2014]
• Study Confirms Ancient River Systems in Sahara 100,000 Years Ago [2013]
• Mineral dust plays key role in cloud formation and chemistry [2013]
• Lost Civilization Discovered in Sahara Desert [2011]
• Ancient Egypt was destroyed by drought, discover Scottish experts [2011]
• Fish Swam the Sahara, Bolstering Out of Africa Theory [2010]
• Lost Cities of the Sahara [2010]
• Geology Picture of the Week Extra: GoogleEarth searcher finds pristine impact crater in Egypt [2010]
• Strange Ancient Crocodiles Swam the Sahara [2009]
• Stone Age humans crossed Sahara in the rain [2009]
• Giant stone-age axes found in African lake basin [2009]
• Graves Found From Sahara's Green Period [2008]
• Graves Found From Sahara's Green Period [2008]
• US scientists find stone age burial ground in Sahara [2008]
• In Search Of The Lost Sahara [2008]
• Once Lush Sahara Dried Up Over Millennia, Study Says [2008]
• Sahara dried out slowly, not abruptly: study [2008]
• The Tassili n'Ajjer [Algeria] : birthplace of ancient Egypt ? [2008]
• Egypt's Earliest Agricultural Settlement Unearthed [2008]
• UN vandals spray graffiti on Sahara's prehistoric art [2008]
• Ruins of 7,000-year-old city found in Egypt oasis [2008]
• Maltese claims extraordinary discovery in Sahara desert [2007]
• Space Data Unveils Evidence of Ancient Mega-lake in Northern Darfur [2007]
• The African Source Of The Amazon's Fertilizer [2006]
• Exodus From Drying Sahara Gave Rise to Pharaohs, Study Says [2006]
• Sahara Desert Was Once Lush and Populated [2006]
• Ancient lakes of the Sahara [2006]
• Ancient drought 'changed history' [2005]
• Stone Age Cemetery, Artifacts Un Earthed In Sahara [2005]
• Prehistoric Desert Town Found In Western Sahara (15,000 Years Old) [2004]
• Scientists Explore Lakefront Property, in the Sahara [2004]
• African Ice Core Analysis Reveals Catastrophic Droughts, Shrinking Ice Fields, Civilization Shifts [2002]

[gleeaikin]

Once again you have provided us with excellent lists of links to follow up on this interesting drought finding, 4 lists this time.

I have been following Catastrophism ever since I joined FR in 2006. I seem to recall several major events you recorded here over the years, which also may have guided me to other good sources. Number one was the discovery of a 2000 BC mile wide crater in the south Iraq swamp which Saddam Hussein had recently drained to drive out his enemies. Number two was reports of possibly two major events of deadly drought in Egypt prior to 2000 BC. These coincided with several very large craters from space rocks found in Argentina. These craters were several or even a dozen miles in diameter. Your lists will yield hours of fascinating exploration of cause and effect regarding the loss of Green Sahara.

Whether or not global warming is caused by greenhouse, human caused gases, or by natural cycles such as sunspots needs ongoing study. When I took my astronomy class 67 years ago, I did contemplate that the 11, 22, 88 approximate year sunspot cycles might hit us hard again in the early part of this century as it did during the 1930s. However, I don’t see what the problem is with using naturally available resources like sun and wind to provide significant amounts of energy/electricity. Some day we (and more likely our grandchildren) are going to regret we did not save more of our oil resources for the important chemical constituents that we use to make so many useful products. These products will become more expensive as easy to drill and pump oil sources are depleted. We should not let oil companies decide our long term priorities. And I have BP stock.

We have been suffering an unusual period of massive flooding and wild fires. I wonder what kind of research has been done on the upper atmospheric and other possible effects of the huge Hunga-Tonga volcanic eruption a few years ago. Perhaps you have some useful links on that impressive explosion and possibly effects it may have caused. I know the eruption did send a massive amount of water into the ionosphere, which has been gradually coming down to earth. What science is happening regarding these effects? Has it all come down now or is some still up there? My pond on land in West Virginia has been shrinking from the continuing dry conditions in that area. I mourn the loss of my nice big pond I bought 25 years ago.