Decadal increase in UK sunshine hours announced

[marchesarosa]

From the Met Office www.metoffice.gov.uk/news/releases/archive/2012/1981-2010-averages

The UK was a slightly sunnier place in 1981-2010 compared to 1971-2000, with 18 extra hours of sunshine annually or, looking back to 1961-1990, an extra 35 hours (about a 3% increase on the 1961-1990 period).

the UK annual mean temperature was 0.25 °C higher for the 1981-2010 period compared to 1971-2000, or 0.52 °C if compared to 1961-1990

So how much does UK's increasing insolation over the decades account for its warming?

And how much does the global decrease in cloud cover over the decades account for the "global"warming"?

[marchesarosa]

See also the other thread on this subject radio4scienceboards.proboards.com/index.cgi?board=witter&action=display&thread=1269



Heathrow’s Sunshine Hours which they started collecting in 1957:

Decade..............Sunshine Hours Total
1960s........................14555.7
1970s....................... 15118.6
1980s........................15264.4
1990s........................16801.9
2000s........................16776.8

www.metoffice.gov.uk/climate/uk/stationdata/heathrowdata.txt

[marchesarosa]

China also measured a reduction in cloud cover over the last six decades

1.6% per decade change in cloud cover during 1954–2005, it becomes a climate forcing. While China is not the world, it bears consideration.

Ann. Geophys., 30, 573-582, 2012
www.ann-geophys.net/30/573/2012/
doi:10.5194/angeo-30-573-2012

Significant decreasing cloud cover during 1954–2005 due to more clear-sky days and less overcast days in China and its relation to aerosol
X. Xia
LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China