Remystifying Climate Feedback

By Joe Born 1. Introduction By presenting actual calculation results from a specific feedback-system example, the plots below will put some graphical meat on the verbal bones of Nick Stokes’ recent “Demystifying Feedback” post. I heartily agree with the main message I took from Mr. Stokes’ post: although some climate equations may be similar to…

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Aussie Climate Crusader Turns Wind Power Nimby

Guest essay by Eric Worrall h/t JoNova – Former Greens leader Bob Brown, leader of a recent high profile electric car expedition to protest the Adani coal mine, has finally discovered a place of natural beauty which is too precious to spoil with ugly wind turbine monstrosities. Crusader Brown turns against wind farm Monday, July…

NREL Energy Storage System Cost Benchmark

Guest post by Roger Caiazza One of the biggest issues with plans to replace fossil fuels with renewable energy is intermittency. At some point that can only be addressed by energy storage but tracking down those costs is difficult. I recently found a recently released report from the National Renewable Energy Lab (NREL): “2018 U.S.…

CBS livestream broadcast of Apollo 11 launch – this day in 1969

I was watching, like millions of others worldwide. Watch again and relive history right now. Fifty years ago today, Apollo 11 began its voyage into American history. The Saturn V rocket carrying astronauts Neil Armstrong, Edwin “Buzz” Aldrin and Michael Collins launched from the Kennedy Space Center in Florida at 9:32 a.m. on July 16,…

Modern societies require minerals, and mining

Congressional bills would end US mining and leave USA dependent on foreign critical materials Paul Driessen and Ned Mamula When OPEC imposed its 1973 embargo, the United States was just over 40% dependent on foreign sources for its oil. But sudden price hikes and shortages severely disrupted families and businesses. Today the USA relies on…

Solar Update July 2019

Guest Post by David Archibald The two major items of interest are the likely month of minimum in the Solar Cycle 24 – 25 transition and the likely amplitude of Solar Cycle 25. The latter can be derived from the solar polar magnetic field strength. Figure 1 following indicates that 25 is likely to be…