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21st Century Tech Blog
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Editor Picks
New Smartphone Apps Use Barcode Scanners To Make Discriminating Choices
lenrosen4
-
March 29, 2025
Education
The Folks Down Under Produce A Climate Anxiety Toolkit
lenrosen4
-
March 14, 2025
Business/Government
Widespread Addiction Erupts From Lotteries to Legalized Betting
lenrosen4
-
March 3, 2025
Editor Picks
To My American Neighbours Who Represent The Largest Number of Readers of This Website
lenrosen4
-
February 3, 2025
Nations
Trump’s Pitch for Greenland and Canada Is Not Unprecedented When You Look At Colonialism
lenrosen4
-
January 17, 2025
Climate Change Science
Environment Update: Carbon Taxes Work – Just Ask British Columbia
lenrosen4
-
July 25, 2013
0
Environment
Environment Update: Heard of the Global Footprint Network?
lenrosen4
-
July 18, 2013
1
Cities
As a Retiree Living Off Investment Income What Should Be My Take On Energy Stocks? – Part 2
lenrosen4
-
July 9, 2013
1
Nations
The 2013 Global Innovation Index Rates the Top Countries
lenrosen4
-
July 4, 2013
0
Agriculture
Headlines at 21st Century Tech for June 28, 2013
lenrosen4
-
June 28, 2013
0
Agriculture
Headlines at 21st Century Tech for June 14, 2013
lenrosen4
-
June 14, 2013
3
Electric Vehicles
Energy Update: An Environmental Engineer’s 2030 Forecast
lenrosen4
-
May 16, 2013
1
Climate Change Science
Energy Update: No Limit it Seems to U.S. Oil Reserves Says Geological Survey
lenrosen4
-
May 8, 2013
2
Cities
Society and Politics – Part 4: Getting Change Done
lenrosen4
-
May 1, 2013
1
Cities
Al Gore’s “The Future” More About the Present and the Past
lenrosen4
-
April 28, 2013
0
Agriculture
Gizmos & Gadgets: Meet Open Source Ecology
lenrosen4
-
April 22, 2013
0
Nations
Society and Politics in 2100 – Part 3: Democracy, Nations, and Technology
lenrosen4
-
April 10, 2013
3
1
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