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21st Century Tech Blog
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Environment
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Oceans
Climate Change Science
Thermal Expansion Has Oceans Rising Imperilling Coastal Communities
lenrosen4
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June 7, 2025
Environment
Three 21st Century Ocean Technologies That Caught My Eye
lenrosen4
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June 5, 2025
Artificial Intelligence
New Google AI Allows Humans To Have Conversations With Dolphins
lenrosen4
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April 16, 2025
Climate Change Science
Since 2009 The Pacific Nation of Solomon Islands Is Shrinking
lenrosen4
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March 28, 2025
Climate Change Science
The Earth’s Rate of Warming in the 21st Century is 0.2 Celsius per Decade
lenrosen4
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December 19, 2024
Agriculture
Environment Update: Nitrogen Pollution as Problematic as CO2
lenrosen4
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March 4, 2013
0
Agriculture
Headlines at 21st Century Tech for March 1, 2013
lenrosen4
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March 1, 2013
0
Curing Illness
Crowdsourcing, Crowdfunding, X Prizes – 7 Billion Minds Put to Work
lenrosen4
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January 14, 2013
1
Climate Change Science
Headlines at 21st Century Tech for December 21, 2012
lenrosen4
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December 21, 2012
0
Agriculture
Water Update: We Look for it on Mars, Mercury, Vesta and the Moon – We Need it Here on Earth
lenrosen4
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December 4, 2012
4
Climate Change Science
Inner Space Update: Ocean Acidification’s Damage in Evidence in Antarctic Study
lenrosen4
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November 29, 2012
7
Climate Change Science
Climate Change Updates: Our BiPolar 2012 Results Confuse Us – Why?
lenrosen4
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November 27, 2012
0
Biomass
Headlines at 21st Century Tech for November 23, 2012
lenrosen4
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November 23, 2012
0
Climate Change Science
Climate Change Update: Bad and Good News Can Come in Threes – Unfortunately Today’s Story is About the Bad
lenrosen4
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November 19, 2012
12
Biomass
Materials Science Update: The Plastic Problem and a Plastic Solution
lenrosen4
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November 13, 2012
3
Biomedical Engineering
Headlines at 21st Century Tech for November 9, 2012
lenrosen4
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November 9, 2012
1
Climate Change Science
Climate Change Update: Is Hurricane Sandy a Weather or Climate Change Event?
lenrosen4
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October 31, 2012
1
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