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21st Century Tech Blog
Science, Technology and the Future
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Climate Change Science
Thermal Expansion Has Oceans Rising Imperilling Coastal Communities
lenrosen4
-
June 7, 2025
Environment
Three 21st Century Ocean Technologies That Caught My Eye
lenrosen4
-
June 5, 2025
Artificial Intelligence
New Google AI Allows Humans To Have Conversations With Dolphins
lenrosen4
-
April 16, 2025
Climate Change Science
Since 2009 The Pacific Nation of Solomon Islands Is Shrinking
lenrosen4
-
March 28, 2025
Climate Change Science
The Earth’s Rate of Warming in the 21st Century is 0.2 Celsius per Decade
lenrosen4
-
December 19, 2024
Cities
Satellites Tell Us That Sea Levels Are Rising Faster Than Previously Thought
lenrosen4
-
April 21, 2015
1
Climate Change Science
Mid-Pliocene Data Reveals What We Can Expect from Current Global Warming
lenrosen4
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April 11, 2015
0
Agriculture
Emission Pledges for Upcoming Paris Climate Summit Will Bring Global Benefits
lenrosen4
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April 1, 2015
1
Climate Change Science
Have You Heard of the Coastal Climate Blueprint?
lenrosen4
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March 27, 2015
0
Climate Change Science
Two Climate Change Concerns That Need Further Study
lenrosen4
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March 25, 2015
1
Agriculture
Wars Over Water – Our Near Future
lenrosen4
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March 23, 2015
0
Oceans
A Martian Ocean Covered More of the Planet than the Atlantic Here on Earth
lenrosen4
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March 7, 2015
0
Climate Change Science
New York City Looks to a Climate Change Future – What About Others?
lenrosen4
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March 5, 2015
1
Climate Change Science
New Maps Show Progress of Ocean Acidification
lenrosen4
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February 20, 2015
0
Cities
Writing From Florida About Freshwater
lenrosen4
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February 13, 2015
2
Climate Change Science
3 Millimeters a Year Doesn’t Sound Like Much But That is the Current Rate of Sea Level Rise
lenrosen4
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January 15, 2015
0
Agriculture
The Collapse of Western Civilization – Speculation on Our Future
lenrosen4
-
January 12, 2015
1
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