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21st Century Tech Blog
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Renewable
Solar Energy
A New Look At The Viability Of Solar Roads
lenrosen4
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November 4, 2024
Energy/Industry
Solar Energy is Popping Up in Some Very Unusual Places
lenrosen4
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April 17, 2024
Energy/Industry
Alberta Company Believes It Has Game-Changing Geothermal Technology
lenrosen4
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February 7, 2024
Energy/Industry
The World Based On 2023 Results May Be On The Way to Exceed COP28 Renewable Energy Targets
lenrosen4
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January 22, 2024
Energy/Industry
Nikola Tesla’s Energy Theory Using The Power Of Flowing Water And Its Unfulfilled Promise
lenrosen4
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January 13, 2024
Climate Change Science
Reinsurer Calls for Steeper Carbon Pricing
lenrosen4
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June 10, 2019
0
Cities
Just Finished Two Intensive Days at Collision 2019 A Very Different Type of Tech Conference/Expo
lenrosen4
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May 24, 2019
0
Agriculture
Gizmos & Gadgets: Introducing the Bionic Chandelier
lenrosen4
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May 4, 2019
0
Cities
Gizmos & Gadgets: Introducing Origami Window Blinds That Double as Solar Power Generators
lenrosen4
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April 19, 2019
0
Climate Change Science
An Explanation of the U.S. Proposed Energy Innovation and Carbon Dividend Act Sounds Identical to Canada’s Putting a Price on Pollution
lenrosen4
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April 11, 2019
0
Climate Change Science
Global Emissions in 2018 Hit a New All-Time High
lenrosen4
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March 26, 2019
0
Energy/Industry
Want to Know How Seriously We Are Approaching Climate Change? Look to Fossil Fuel Investments
lenrosen4
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March 22, 2019
0
Biomass
Is Wind and Solar Enough to Meet the Energy Needs of Our 21st Century World?
lenrosen4
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March 20, 2019
0
Cities
Gizmos & Gadgets: Australian Architectural Firm Develops an Origami-like Solar Window Covering
lenrosen4
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February 23, 2019
0
Energy/Industry
Is a Geothermal Heating and Cooling Energy System in Your Home’s Future?
lenrosen4
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February 22, 2019
1
Climate Change Science
21 U.S. State Governors Have Now Joined an Alliance to Meet Paris Climate Agreement Goals
lenrosen4
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February 12, 2019
0
Agriculture
Global Warming and the Colorado River
lenrosen4
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February 5, 2019
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