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21st Century Tech Blog
AI
Computers
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Environment
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Cities
Toronto Could Use An Astra Bridge
lenrosen4
-
May 15, 2024
Housing
Manufacturing And 3D Printing At A Crossroads
lenrosen4
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May 11, 2024
Climate Change Science
Climate Scientists Expect The Worst This Century And They Are Depressed
lenrosen4
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May 9, 2024
Environment
Need Help In Decarbonizing On A Personal Level? Read This
lenrosen4
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May 4, 2024
Energy/Industry
A Carbon Sequestration Project Conceived Of In 2016 Is Finally On The Rails
lenrosen4
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May 1, 2024
Environment
COP28 Has Been Hijacked by the Fossil Fuel Industry
lenrosen4
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November 29, 2023
0
Editor Picks
What Will the World Be Like in 2100 and Beyond?
lenrosen4
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November 26, 2023
1
Climate Change Science
Sustainable Coal is a Fiction Being Peddled by Coal Producers and Their Customers
lenrosen4
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November 25, 2023
0
Business/Government
The Agenda of the Fossil Fuel Industry is Clear – Damn the Torpedoes and Full Speed Ahead
lenrosen4
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November 23, 2023
0
Agriculture
The Biggest Impediment to Humans Going to Mars is Food Not Whether SpaceX’s Starship Can Fly
lenrosen4
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November 19, 2023
0
Geoengineering Science and Technology
Could Adding Crushed Rock to Soil Lower Global Atmospheric Temperatures?
lenrosen4
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November 14, 2023
0
Agriculture
Where We Should Be Seeking Advice in a Hotter, Drier World
lenrosen4
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November 10, 2023
0
Material Science
New Aerogel Film Can Make Buildings Cooler
lenrosen4
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November 9, 2023
0
Climate Change Science
On the Eve of COP28 There Are Lots of Alarm Bells About Climate Change Going Off with the Latest Rung by James Hansen
lenrosen4
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November 8, 2023
0
Environment
Pacific Island Nations Are Forcing the World to Redefine the Meaning of Country
lenrosen4
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November 4, 2023
0
Environment
Is Putting a Price on Carbon About to Die as the World is Distracted by Other Crises Other Than Climate Change?
lenrosen4
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November 2, 2023
0
Energy/Industry
How Much Carbon Needs to be Drawn Down to Keep the Thermostat from Rising Above 1.5 Celsius?
lenrosen4
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November 1, 2023
0
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