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21st Century Tech Blog
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Putting Fluoride In Community Water Supplies Is Being Questioned
lenrosen4
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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
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October 27, 2024
Business/Government
Sustainable Business Practices For A Changing World
lenrosen4
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October 24, 2024
Energy/Industry
Energy Update: Solar Power to the Poor
lenrosen4
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May 13, 2013
0
Gadgets
Gizmos & Gadgets: Meet the GiraDora, A Low Tech Washer and Dryer
lenrosen4
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May 12, 2013
9
Climate Change Science
Climate Change Update: We Did It! We Passed 400
lenrosen4
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May 11, 2013
0
Agriculture
Headlines at 21st Century Tech for May 10, 2013
lenrosen4
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May 10, 2013
2
Geoengineering Science and Technology
Space Update: Our Human Behaviour Here on Earth is Perfectly Suited for Mars
lenrosen4
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May 8, 2013
0
Climate Change Science
Energy Update: No Limit it Seems to U.S. Oil Reserves Says Geological Survey
lenrosen4
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May 8, 2013
2
Agriculture
Agriculture Update: How to Feed 9.5 Billion Humans in 2050
lenrosen4
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May 7, 2013
3
Environment
Gizmos & Gadgets: DewBank Harvests Water from Desert Mists
lenrosen4
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May 6, 2013
1
Environment
The Ecology of Innovation – What Can Drive the 21st Century
lenrosen4
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May 4, 2013
0
Agriculture
Headlines at 21st Century Tech for May 3, 2013
lenrosen4
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May 3, 2013
1
Climate Change Science
Climate Change Update: Follow the Keeling Curve on Twitter
lenrosen4
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May 2, 2013
1
Cities
Society and Politics – Part 4: Getting Change Done
lenrosen4
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May 1, 2013
1
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