The Honest Broker Profile picture
Jun 28, 2018 3 tweets 3 min read Twitter logo Read on Twitter
Final group stage table
World Cup prediction evaluation
@SoccernomicsLtd
✅1st place= @LloydsofLondon @GoldmanSachs @CBSSports with 32/48
✅In 2014 top predictors also had 32
✅All bested naive (except @TMuk_news & 2014 winner @AndrewGKYuan)
✅Will start fresh for knockout
⬇️
Some further details.
✅2018= 9 draws, so 39 matches possible in this simple competition
✅2014= also 9 draws
✅Coin flip would thus give expected 19.5 correct
✅All predictions show ++value over coin flip
✅Some modest value over naive methods (ELO, FIFA, $$)
@SoccernomicsLtd
✅Now I will run a second competition with all 16 teams x 12 rankings in the knockout phase
✅In 2014 forecasters correctly anticipated between 9 and 11matches correctly
✅FIFA rankings had 10/16
✅2018 in the quarterfinals, there are 4 unanimous picks:
#ESP #BRA #BEL #ENG

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with The Honest Broker

The Honest Broker Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @RogerPielkeJr

Oct 8, 2018
1⃣A short thread on what the new @IPCC_CH report says about trends in extreme events, specifically: heat waves, drought, floods, tropical cyclones, tornadoes. Let's go . . .
2⃣Temperature extremes: Nor change from AR5 or SREX
Very likely= ⬇️cold days and nights
Very likely= ⬆️warm days and nights
Likely= "consistent changes are detectable on continental scale in North America, Europe and Australia"
3⃣Drought. No change vs AR5
"low confidence in the sign of drought trends since 1950 at global scale... likely to be trends in some regions of the world, including increases in drought in the Mediterranean and W Africa & decreases in droughts in central N America & NW Australia"
Read 11 tweets
Sep 12, 2018
A comprehensive look at US hurricanes, climate modes & damage⬇️
Klotzbach, P., Bowen, S. G., Pielke Jr, R., & Bell, M. (2018). Continental United States hurricane landfall frequency and associated damage: Observations and future risks. BAMS.
journals.ametsoc.org/doi/10.1175/BA…
Higher numbers of east coast landfalls & damage occur in ENSO neutral years
(climate variability is so out of vogue, I know😉)⬇️
US east coast population & housing units have increased dramatically since 1940
Read 8 tweets
Aug 8, 2018
Earl & Simmonds 2018 Spatial and temporal variability and trends in 2001–2016 global fire activity. JGR:A 123:2524-2536.
"There is a very strong decline in global fires (stat sig at the 0.1% confidence level; hereafter p < 0.001), present in each season except Dec–Feb (p < 0.1)"
Earl & Simmonds 2018:
"most of these large‐scale regions of the world exhibit little change or decreasing in fire activity except India (box 14) and China (box 17—...), with a weak nonsignificant signal in Canada" agupubs.onlinelibrary.wiley.com/doi/abs/10.100…
"The mainland United States (box 3) displays no 2001–2016 trend in [active fires] ... This is also the case for the satellite‐based [burned area] studies (Andela et al., 2017; Giglio et al, 2013), though BA has been found to be increasing in some surface‐based U.S. studies" . . .
Read 4 tweets
Aug 8, 2018
"the incidence of floods over mainland France is found to be stable over the last 35 years and even falling once we account for the heightened population pressure" sciencedirect.com/science/articl…
"rates of forest fire destruction display a significative downward trend, the anthropogenic rate fell from about 5% to 2% (over the period 1973–2017) while the natural rate is about 100x smaller and likewise falling. . . " sciencedirect.com/science/articl…
". . . The latter fact proves that the incidence of natural forest fires over the French mediterranean seaboard is receding over the last 44 years." sciencedirect.com/science/articl…
Read 4 tweets
Aug 7, 2018
Climate chg is real & can/will impact fire
Evidence still matters (or not?)
Keeley & Zedler 2009:
“Over the last 130 years there has been no significant change in the incidence of large fires >10 000 ha”
Biggest known CA fire? Maybe 1889
To discuss.
⬇️
esajournals.onlinelibrary.wiley.com/doi/abs/10.189…
Conclusion of Keeley & Zedler 2009 (spoiler, it’s us in many ways)
Changes in climate, resulting from GHGs, or just variability can of course influence fire
But whatever we do on GHGs (& I’ve got plenty of good ideas) the problem of fire is here to stay and caused often by our settlements in fire-prone regions, which impacts both risk & exposure
Read 6 tweets
Aug 1, 2018
This NYT article on climate policy history brings together alternative history with a disaster movie plot (brave scientists warns the world). The world was not on the brink of rapid decarbonization in the 1980s. It's a fun story though⬇️
What Frank Press (NAS prez, Carter science advisor) wrote 1989:
"Substantial reduction of CO2... responsible for 1/2 of the temp rise, will require a change in the energy economy of the world at a cost of 100s of Bs to Ts of $ & may not be technically possible over next 40 yrs"
More Press 1989 (a Democrat, scientist):
"I cannot recommend such large investments at this time in view of the uncertainties, but this does not mean doing nothing. I do urge you to undertake the following program . . ." rogerpielkejr.blogspot.com/2010/08/who-wr…
Read 4 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us on Twitter!

:(