THREAD: Understanding pivot. Growing pressure from world population life-style will reach a point where it is damaging the capacity of Earth systems to an extent where life support will be challenged. It is simply a question of at what stage governments act. 1/X
-which societal services and Earth systems are involved?
-how well is the societal system performing now?
-what drawdown stage has been reached? For example: 4/x
-Stewardship of current societal and Earth systems
- Increase societal performance whilst stewarding systems
- regenerate Earth system whilst ensuring society system continues to perform
- Full pivot 7/x
More from Science
1/ Automobiles and Intake Fraction. Since cars are back in the news I thought I would retweet this model result I offered in early April 2020. I focused only on 1 micron particles & accounted for windows completely closed & cracked slightly open.
2/ Related air exchange rates were based on experimental results in literature for mid-sized sedans. Particle deposition to indoor surfaces were accounted for, as the surface to volume ratio in a 3 m3 cab is large. An important outcome was the intake fraction (IF)
3/ Here, IF is the number of particles (or virions in collective particles) inhaled by a receptor DIVIDED BY the number or particles (or virions in collective particles) emitted by an infector.
4/ Integrated over the two hour drive (in this example) the IF for all windows closed & a receptor at rest is 0.08 (8% of what comes out of the infectors respiratory system ends up in the respiratory system of the receptor). 8%! That is a very high intake factor.
5/ With additional ventilation from cracking a window open drops the IF to 0.012 (1.2%) still relatively high. Can get lower by opening more windows.
Simulation: Riding in car for 120 min w/ infected passenger who seems fine other than a cough every few mins. (1) a lot of SARS-CoV-2 virus (in fine aerosol particles) accumulation in car cabin w/ windows closed; (2) cracking window open slightly = dramatic reduction. #COVID19 pic.twitter.com/bCmrmnLUPG
— Dr. Richard Corsi (@CorsIAQ) April 4, 2020
2/ Related air exchange rates were based on experimental results in literature for mid-sized sedans. Particle deposition to indoor surfaces were accounted for, as the surface to volume ratio in a 3 m3 cab is large. An important outcome was the intake fraction (IF)
3/ Here, IF is the number of particles (or virions in collective particles) inhaled by a receptor DIVIDED BY the number or particles (or virions in collective particles) emitted by an infector.
4/ Integrated over the two hour drive (in this example) the IF for all windows closed & a receptor at rest is 0.08 (8% of what comes out of the infectors respiratory system ends up in the respiratory system of the receptor). 8%! That is a very high intake factor.
5/ With additional ventilation from cracking a window open drops the IF to 0.012 (1.2%) still relatively high. Can get lower by opening more windows.
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Neo-nazi group #PatriotFront held a photo op in #Chicago last weekend & is currently marching around #DC so it's as good time as any to compile a list of their identified members for folks to watch for
Who are these chuds?
Patriot Front broke away from white nationalist org Vanguard America following #unitetheright in #charlottesville after James Alex Fields was seen with a VA shield before driving his car into a crowd, murdering Heather Heyer & injuring dozens of others
Syed Robbie Javid a.k.a. Sayed Robbie Javid or Robbie Javid of Alexandria,
Antoine Bernard Renard (a.k.a. “Charlemagne MD” on Discord) from Rockville, MD.
https://t.co/ykEjdZFDi6
Brandon Troy Higgs, 25, from Reisterstown,
Who are these chuds?
Patriot Front broke away from white nationalist org Vanguard America following #unitetheright in #charlottesville after James Alex Fields was seen with a VA shield before driving his car into a crowd, murdering Heather Heyer & injuring dozens of others
Syed Robbie Javid a.k.a. Sayed Robbie Javid or Robbie Javid of Alexandria,
Happy Monday everyone :-) Let's ring in September by reacquainting ourselves with Virginia neo-Nazi and NSC Dixie affiliate Sayed "Robbie" Javid, now known by "Reform the States". Robbie is an explicitly genocidal neo-Nazi, so lets get to know him a bit better!
— Garfield but Anti-Fascist (@AntifaGarfield) August 31, 2020
CW on this thread pic.twitter.com/3gzxrIo9HD
Antoine Bernard Renard (a.k.a. “Charlemagne MD” on Discord) from Rockville, MD.
https://t.co/ykEjdZFDi6
Brandon Troy Higgs, 25, from Reisterstown,