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21st Century Tech Blog
Science, Technology and the Future
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Water
Growing Freshwater Scarcity From Disruptive Climate Change Leads to Aerial Water Harvesting Invention
lenrosen4
-
December 22, 2024
Climate Change Science
Is Global Warming Causing Groundwater Sources To Shrink?
lenrosen4
-
November 18, 2024
MEDICAL
Putting Fluoride In Community Water Supplies Is Being Questioned
lenrosen4
-
November 13, 2024
Environment
The Growing Problem of Forever Chemicals in Our Air, Water, and Soil
lenrosen4
-
June 9, 2024
Environment
Shrinking Fish Size A Sign Of A Stressed Environment
lenrosen4
-
May 20, 2024
Cities
Water and Waukesha, Wisconsin – A Symptom and Freshwater Challenge
lenrosen4
-
October 9, 2013
4
Agriculture
Water – A Graphical Representation of the Resource
lenrosen4
-
October 6, 2013
0
Agriculture
Did You Know that Food Wastage is the 3rd Largest Greenhouse Gas Contributor on the Planet?
lenrosen4
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October 4, 2013
0
Agriculture
Climate Change and Its Impact on our World’s Major Rivers – Part 3b: The Rivers of North America
lenrosen4
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October 2, 2013
1
Climate Change Science
Climate Change and Its Impact on our World’s Major Rivers – Part 3a: The Rivers of North America
lenrosen4
-
September 30, 2013
0
Robots & Robotics
Headlines: Mars Has Lots of Accessible Water
lenrosen4
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September 27, 2013
0
Agriculture
Agriculture Update: Self-Learning Irrigation System is Latest Breakthrough
lenrosen4
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September 26, 2013
0
Automobiles
World Future Society Makes 20 Forecasts for 2025
lenrosen4
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September 17, 2013
3
Climate Change Science
Environment Update: New $2 Million X-Prize Focuses on Changing pH in the World’s Oceans
lenrosen4
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September 15, 2013
0
Climate Change Science
Climate Change and Its Impact on our World’s Major Rivers – Part 2: The Rivers of South America
lenrosen4
-
September 11, 2013
3
Climate Change Science
Climate Change and Its Impact on our World’s Major Rivers – Part 1: The Rivers of Asia
lenrosen4
-
September 4, 2013
4
Agriculture
Inspiring Innovation – The Buckminster Fuller Challenge
lenrosen4
-
August 30, 2013
0
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