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21st Century Tech Blog
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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
Agriculture
Water Wars are in Humanity’s Future if Not in the Present
lenrosen4
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June 5, 2020
Biomass
Is Wind and Solar Enough to Meet the Energy Needs of Our 21st Century World?
lenrosen4
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March 20, 2019
Agriculture
Global Warming and the Colorado River
lenrosen4
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February 5, 2019
Energy/Industry
All Forms of Renewable Energy to be Cheaper Than Power Generated from Fossil Fuel Sources by 2020
lenrosen4
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January 17, 2018
Agriculture
Climate Change and Its Impact on our World’s Rivers – Africa – Part Three
lenrosen4
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December 11, 2013
2
Biomass
Environment Update: Climate Change, the World Bank, Indonesia and Coal
lenrosen4
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October 15, 2013
0
Energy/Industry
Energy Update: Renewables to Surpass Natural Gas by 2016 But Coal Continues to Grow
lenrosen4
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July 2, 2013
0
Electric Vehicles
Energy Update: An Environmental Engineer’s 2030 Forecast
lenrosen4
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May 16, 2013
1
Biomass
Energy Update: Keystone is a Drop in the CO2 Bucket List
lenrosen4
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February 18, 2013
0
Biomass
Energy Update: IEA Projects Energy Sources in 2035
lenrosen4
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November 14, 2012
0
Energy Conservation Technology
Energy Update: Solar is Taking Off According to this BP Report
lenrosen4
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July 10, 2012
0
Climate Change Science
Climate Science and Energy Update: 13 Actions Our Governments Must Take
lenrosen4
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June 11, 2012
0
Energy/Industry
Energy Update: Inventor to Demonstrate He Can Generate Electricity from Air in Defiance of the Laws of Thermodynamics
lenrosen4
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June 3, 2012
8
Energy/Industry
Energy in the 21st Century: Part 4 – The Renewables
lenrosen4
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May 12, 2010
1
Energy/Industry
Energy in the 21st Century: Part 1- Our History and the Current Global Dilemma
lenrosen4
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February 10, 2010
1
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