The last time the average global temperature dipped below that average was February 1985, the agency said.
Double the amount of carbon dioxide in the atmosphere and the average global temperature will go up.
The average global cloud height is linked to the average global temperature generally, the higher the average cloud height, the higher the average surface temperature, and vice versa.
FORBES: An Unsettling Week For Global Warming's 'Settled Science'
The global average temperature has already risen by about 0.7C since pre-industrial times.
We recognize the scientific view that the increase in global average temperature above pre-industrial levels ought not to exceed 2 degrees C.
"So-called 'sceptics' should now drop their thoroughly discredited claims that the increase in global average temperature could be attributed to the impact of growing cities, " he said.
The global average temperature for last year would have been a record 15 years ago, an indication that what used to be unusual heat is more commonplace.
It's also worth chucking into the mix that the global average temperature variation between even the strongest El Nino event and the next ordinary year is a fraction of a degree Celsius - certainly less than the rise of about 0.6C that we've seen since the beginning of the study period, in 1950.
The National Oceanic and Atmospheric Administration (Noaa) said that their analysis of temperature data from a global network of weather stations indicated that the average temperature for 2012 was 0.57C above the 20th Century average.
The global temperature record represents an average over the entire surface of the planet.
FORBES: Snow in Brazil, Blazing Heat in US as Climate Change Continues
This is the global surface temperature departure from the 1961-1990 average, also from the CRU at East Anglia. (Despite all the climategate hubbub, this is still the reference standard in the business).
The temperature has risen four times more than the global average in the past century.
The 5 year moving SST temperature average shows that the warming trend peaked in 2003 and a simple regression analysis shows an eight year global SST cooling trend since then .
FORBES: Carbon Dioxide Emissions Up Sharply, Yet Temperatures Are Flat?
应用推荐