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21st Century Tech Blog
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Urban Management In The 21st Century Requires “Smart City” Solutions
lenrosen4
-
April 9, 2025
Cities
Smart Lighting For Sustainable 21st Century Cities
lenrosen4
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March 30, 2025
Cities
Why Petrochemical Dependency Is Making Our Houses Burn Down
lenrosen4
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February 5, 2025
Cities
LA Burning Is Hard To Ignore If You Cover Climate Change
lenrosen4
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January 14, 2025
Cities
The Present And Future Internet of Things For Sustainable Construction
lenrosen4
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September 5, 2024
Cities
Want People to Buy More Electric Cars? – Fix Three Things
lenrosen4
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November 4, 2019
0
Cities
How to Get to Zero-Carbon Buildings
lenrosen4
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October 13, 2019
0
Cities
C40 Mayors Announce Support for a Global Green New Deal to Fight Climate Change
lenrosen4
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October 9, 2019
0
Cities
Report Points to Unlocking $24 Trillion in Making Zero-Carbon Cities Investment
lenrosen4
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September 19, 2019
0
Cities
The Cost of Rising Sea Levels
lenrosen4
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August 7, 2019
0
Biomass
Letting Nothing Go to Waste is the New Mantra of the Garbage Collecting World
lenrosen4
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July 25, 2019
0
Cities
Why Can’t We Cover Our Buildings with Photovoltaics?
lenrosen4
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July 14, 2019
0
Artificial Intelligence
Is Peter Diamandis, the Serial Entrepreneur and Futurist, Right That the Era of Internal Combustion Engines is Ending?
lenrosen4
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July 7, 2019
0
Cities
Just Finished Two Intensive Days at Collision 2019 A Very Different Type of Tech Conference/Expo
lenrosen4
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May 24, 2019
0
Agriculture
Finding Solutions to the Growing Problem of Freshwater Scarcity
lenrosen4
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May 13, 2019
0
Cities
If You Have Range Anxiety About Electric Vehicles Then Move to Sweden Where They Are Building Rechargeable Roads
lenrosen4
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April 20, 2019
0
Cities
Gizmos & Gadgets: Introducing Origami Window Blinds That Double as Solar Power Generators
lenrosen4
-
April 19, 2019
0
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Science Without The Humanities In College Is Poor Education
April 14, 2025
