Sea Ice Extent (Global Antarctic and Arctic) – Day 70 – 2017

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CO2 rising at 2ppm – Whats to Worry?

Climate science says:

CO2 was about 280ppm in 1750.

CO2 is about 404ppm now.

CO2 levels have been rising by about 2ppm since 1997.

Therefore a doubling of CO2 from 1750 will occur around 78 years from now – say 2100.

The Transient Climate Response to a doubling of CO2 is around 1.35C.

Therefore temperatures from 1750 to 2100 will have risen by 1.35C

And for temperature to rise another 1.35C CO2 will have to go from 560ppm to 1120ppm – 280 more years 2380.

I don’t know about you, but 2.7C by 2380 sounds pretty nice.

And remember, for temperatures to go up 1.35C from today, it will take 200 years.

Whats everybody worrying about?

(h/t Hockey Schtick)

 

Sea Ice Extent (Global Antarctic and Arctic) – Day 67 – 2017

Antarctica set a new record for lowest minimum back on day 60.

Year Min Max day of Max day of Min Avg Anomaly
2017 2.075 N/A N/A 60 N/A
1997 2.264 18.792 265 58 -0.262895726184
1993 2.281 18.71 263 50 -0.233008054951
2011 2.319 18.954 266 53 -0.152375178238
1984 2.382 18.37 266 58 -0.20397636284
2006 2.487 19.36 264 51 -0.192035452211
1992 2.492 18.467 255 54 -0.241630203122
1980 2.521 19.092 267 57 -0.390551802967
1991 2.554 18.671 273 58 -0.108073808375
2016 2.578 18.518 241 48 -0.484736760499
2000 2.582 19.159 272 49 0.106979086495
1996 2.597 18.831 267 56 0.12888072584
1985 2.602 18.931 254 50 -0.045367912714
1988 2.639 18.785 277 55 -0.142789879716
2009 2.671 19.299 267 53 0.395643999844
1981 2.694 18.856 261 51 -0.210032677284
2002 2.697 18.116 252 51 -0.4313395618
1999 2.707 18.981 273 51 0.107734410803
1989 2.723 18.274 266 51 -0.227268328923
2007 2.723 19.086 272 50 0.034159068337
1998 2.772 19.244 258 56 0.085424821762
1990 2.784 18.379 273 53 -0.24335326043
2005 2.804 19.295 272 49 0.041931671077
2010 2.842 18.998 249 47 0.453843999844
1983 2.843 18.811 263 55 -0.256928852148
1982 2.89 18.55 246 54 -0.021131648978
1979 2.911 18.361 256 48 0.039939779594
1986 2.953 18.027 261 65 -0.555519016082
1987 3.01 18.524 258 52 -0.249198161098
1994 3.083 18.827 243 43 0.121022082036
2012 3.111 19.478 266 54 0.364189469009
2004 3.259 19.124 252 51 0.321249578299
1995 3.33 18.762 269 55 0.141808383406
2001 3.441 18.494 271 50 0.019676876556
2015 3.544 18.912 275 49 0.761114979042
2014 3.548 20.201 263 52 1.123178246419
2003 3.626 18.68 268 48 0.316339890255
2013 3.679 19.608 274 50 0.870657698474
2008 3.692 18.298 247 51 0.599159414364

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Mass Extinction! They blamed warming. It was cooling.

Warming did it. Cooling did it.

“The Earth has known several mass extinctions over the course of its history. One of the most important happened at the Permian-Triassic boundary 250 million years ago. Over 95% of marine species disappeared and, up until now, scientists have linked this extinction to a significant rise in Earth temperatures. But researchers have now discovered that this extinction took place during a short ice age which preceded the global climate warming.”