Sentences with phrase «+ year warming trends»

Not exact matches

-- Given these constraints on climate forcing trends, we predict additional warming in the next 50 years of 3/4 + / - 1/4 °C, a warming rate of 0.15 + / - 0.05 °C per decade.

Compare the professionalism of NASA's scientists and programs with that of Spencer and Christy (who told Congress in 2013 that no warming had occurred in 15 years, contradicting his own data and laughably contradicting the trend in atmosphere + ocean heat content).

Indeed, a portion of that small linear trend difference might be due to human CO2 emissions; or, then again, it might be due to the vast urbanization effect over the last 60 + years; or due to the large deforestation that's taken place; or, maybe it's entirely due to the serial fabrication of global warming by the world's climate agencies; or it's even possible that the post-1950 warming was entirely a natural phenomenon - the same as the prior 64 - year period experience.

However, if this was correct reasoning one could claim with equal validity, using the same data set and time period, that there has been global warming over the recent 20 - year period, since the trend is also not statistically significantly distinguishable from the trend estimate over the time period since 1979 («global warming» is the Null - hypothesis in this case), which itself is highly statistically significantly different from a Zero - trend (RSS: 0.124 + / -0.067 deg.

Hence the temperature trends over the past 135 years can be synthetized the superposition of a background linear warming trend with a triangular shape fluctuation, whose slope is +0.06 + / - 0.11 °C per decade.

The data and the statistical analysis does not provide the evidence that the so called «pause», a time period with a lower trend estimate than the longer - term trend estimate, was more than just a short - term fluctuation around the median warming trend, mostly due to short - term unforced internal variability in the Earth system (and some contribution from decreasing solar activity and increased reflecting aerosols in the atmosphere, counteracting the increased greenhose gas forcing to some degree), like the «acceleration» over the 16 - year period from 1992 to 2007 (e.g., UAH trend: 0.296 + / - 0.213 (2 sigma) deg.

Superimposed on this trend line is a cyclical curve resembling a sine curve, with an amplitude of somewhere around + / - 0.2 C and a total warming / cooling cycle time of around 60 years.

The last 15 year trend of 0.07 C + - 0.13 C / decade largely overlaps the preceding 20 year trend of 0.146 C + - 0.067 C / decade warming.

The same NOAA report states that the ENSO adjusted trend from 1999 to 2008 was 0.0 + / - 0.05 C. Assuming the ENSO adjusted trend has not gone up in the last two years we still have 3 years of no warming to invalidate the models.