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21st Century Tech Blog
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Putting Fluoride In Community Water Supplies Is Being Questioned
lenrosen4
-
November 13, 2024
Editor Picks
Once Again Global Action To Mitigate Climate Change Is At Risk
lenrosen4
-
November 12, 2024
Environment
Carbon Capture News Bytes – Direct Air Capture, Cyanobacteria and Progress on the Pathways Alliance
lenrosen4
-
October 30, 2024
Climate Change Science
With COP 29 In Two Weeks A Reminder To Delegates – We Are On Pace For A 3.1 Celsius Rise In Atmospheric Temperatures
lenrosen4
-
October 27, 2024
Business/Government
Sustainable Business Practices For A Changing World
lenrosen4
-
October 24, 2024
Cities
Floods in Toronto, Floods in Calgary, Train Derailment in Quebec – How are they Related?
lenrosen4
-
July 10, 2013
0
Cities
As a Retiree Living Off Investment Income What Should Be My Take On Energy Stocks? – Part 2
lenrosen4
-
July 9, 2013
1
Agriculture
Agriculture Update: Beeologics May Help Save Honey Bees from Colony Collapse Disorder
lenrosen4
-
July 9, 2013
5
Energy/Industry
Energy Update: Desertec Foundation Walks Away from Solar and Wind Project Consortium
lenrosen4
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July 8, 2013
0
Energy/Industry
Gizmos & Gadgets: Mirrored Ducts Bring Light Into Buildings
lenrosen4
-
July 6, 2013
0
Climate Change Science
As a Retiree Living Off Investment Income What Should Be My Take on Energy Stocks?
lenrosen4
-
July 3, 2013
3
Energy/Industry
Energy Update: Renewables to Surpass Natural Gas by 2016 But Coal Continues to Grow
lenrosen4
-
July 2, 2013
0
Agriculture
Agriculture Update: It Seems Soylent is Not Alone in Addressing World Hunger
lenrosen4
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July 1, 2013
0
Agriculture
Headlines at 21st Century Tech for June 28, 2013
lenrosen4
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June 28, 2013
0
Automobiles
Transportation and Communication Update: The Internet of Cars is a Near Thing Today
lenrosen4
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June 27, 2013
0
Climate Change Science
Climate Change – A President Gets Serious About Carbon
lenrosen4
-
June 26, 2013
0
Energy/Industry
Energy Update: CPV stands for Concentrated Photovoltaic
lenrosen4
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June 25, 2013
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Putting Fluoride In Community Water Supplies Is Being Questioned
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