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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
-
March 30, 2025
Cities
Why Petrochemical Dependency Is Making Our Houses Burn Down
lenrosen4
-
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
Quebec and Ontario Invest in EV Charging Infrastructure
lenrosen4
-
December 10, 2015
0
Agriculture
Today is Water Day at COP 21 in Paris
lenrosen4
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December 2, 2015
0
Cities
Real Estate in Peril – Rising Sea Levels and Oceanfront Property
lenrosen4
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November 16, 2015
0
Cities
Population Tinkering: Why China Abandoned its One Child Policy
lenrosen4
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November 3, 2015
0
Cities
Knowing When, Where and How Extreme Weather Events Unfold is Mission Critical
lenrosen4
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September 9, 2015
0
Cities
Why the Number One Trillion is Too Much
lenrosen4
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August 7, 2015
0
Agriculture
Yes We Have Climate Change But Isn’t World Population Growth The Real Problem?
lenrosen4
-
June 27, 2015
1
Cities
Gizmos & Gadgets: Tunable Windows
lenrosen4
-
June 12, 2015
0
Agriculture
California Isn’t the Only State Taking Action on Water
lenrosen4
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June 5, 2015
0
Cities
Lake Mead Continues to Drop with Dire Implications for Seven U.S. States and Mexico
lenrosen4
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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
The Nepal Earthquake is Only the Latest – Are We Getting Any Better at Predicting These Events?
lenrosen4
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April 27, 2015
0
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