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21st Century Tech Blog
Science, Technology and the Future
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Cities
Urban Management In The 21st Century Requires “Smart City” Solutions
lenrosen4
-
April 9, 2025
Artificial Intelligence
How Smart Cities Can Defend Against Pandemics
lenrosen4
-
June 11, 2020
Cities
Has COVID-19 Shown Us How Our Cities in the Future Will Operate?
lenrosen4
-
April 21, 2020
Cities
Reality Starting to “Sink In” for Oceanfront Cities, Towns, But Not Necessarily Property Owners
lenrosen4
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April 14, 2020
Artificial Intelligence
BrainBox AI Uses Deep Learning to Reduce the Carbon Footprint of All Types of Buildings
lenrosen4
-
March 6, 2020
Cities
Lake Mead Continues to Drop with Dire Implications for Seven U.S. States and Mexico
lenrosen4
-
May 3, 2015
0
Agriculture
Are 70 Cities at Risk of Running Out of Freshwater by 2040?
lenrosen4
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April 29, 2015
0
Cities
Satellites Tell Us That Sea Levels Are Rising Faster Than Previously Thought
lenrosen4
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April 21, 2015
1
Cities
$89 Trillion Investment Needed to Transition to Low-Carbon Economy
lenrosen4
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April 19, 2015
3
Cities
Gizmos & Gadgets: Blancride Fills Empty Car Seats
lenrosen4
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March 8, 2015
0
Energy/Industry
Indonesia – The World’s 6th Largest GHG Emitter Faces Coal Energy Challenge
lenrosen4
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March 1, 2015
1
Cities
Writing From Florida About Freshwater
lenrosen4
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February 13, 2015
2
Cities
Boston Issues Action Plan to Combat Rising Sea Levels and CO2
lenrosen4
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January 20, 2015
1
Agriculture
The Collapse of Western Civilization – Speculation on Our Future
lenrosen4
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January 12, 2015
1
Cities
Miami Beach’s Answer to Rising Sea Levels – More Waterfront Condos
lenrosen4
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December 23, 2014
0
Artificial Intelligence
Singapore to Launch Autonomous Vehicles in 2015
lenrosen4
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December 23, 2014
0
Agriculture
Billion Dollar Desalination Plants – Is this the Answer to California’s Prolonged Drought?
lenrosen4
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December 16, 2014
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