On 21/01/17 07:26, Vidcapper wrote:
On 20/01/2017 19:15, wrote:
On Friday, 20 January 2017 16:37:38 UTC, vidcapper wrote:
On 20/01/2017 08:49, wrote:
On Thursday, 19 January 2017 07:13:44 UTC, vidcapper wrote:
On 18/01/2017 17:45, wrote:
https://data.giss.nasa.gov/gistemp/t...LB.Ts+dSST.txt

Record global temperatures for the 3rd year running. 2017 will
(OK, almost certainly will) show cooling from the 2016 figure,
however.


Why so confident?

--

Paul Hyett, Cheltenham

There isn't an El Nino at the start of the year, Paul, as there was
last year. Thus the world will be cooler. Instead we have La Nina
conditions to start the year. Comparisons between years are best made
between like to like years - though there are climate deniers who
will trumpet a cooler 2017 as evidence of global warming having
stopped/paused/was never happening anyway. Always happens *)).


I can understand why EN can increase the temperature in a local region,
but since it doesn't make the sun hooter for the whole year, how can it
raise the overall global temperature?



Heat transfer from equatorial latitudes, Paul. El Nino is not just a
local heating phenomenon:

https://phys.org/news/2015-10-el-nino-entire-globe.html


But that's just transferring heat that's already *on* the planet, not
creating extra heat, which would break the first law of thermodynamics!


No extra heat is created by the ENSO. In El Nino years, heat is
transferred from the ocean to the air whilst in El Viejo years the
atmosphere warms the cold sea surface and that heat is transferred
downwards, waiting for the next El Nino to re-release it.

--
Graham P Davis, Bracknell, Berks. [Retd meteorologist/programmer]
Web-site: http://www.scarlet-jade.com/
There are more fools than knaves in the world, else the knaves would
not have enough to live upon. [Samuel Butler]