Tuesday, 17 March 2015

Is it true when people say temperatures havn’t risen for ??? years? No, that's an Urban Myth

Claiming "global temperatures have not risen" is a popular quote.
But actually the temperature has risen.
This chart shows the annual average global temperatures……from NASA's Goddard Institute for Space Studies (GISS)

One thing to note ….. every La Nina ‘year’ since 1998 was warmer than every El Nino ‘year’ before 1995.  

It's useful to look at average global temperatures by comparing decades.
This chart comes from the World Meteorological Organisation

The high figures in the 1930s and 1940s were produced because there were strong El Ninos over a period from about 1939 to 1942.

Since the mid 20th century global temperatures have risen, decade by decade.

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