But climate is known to be variable - a cold winter, or a few strung together doesn't mean the planet is cooling.But climate is known to be variable - a hot summer, or a few strung together doesn't mean the planet is warming.
Following a 30-year trend of warming, global temperatures have flatlined since 2001 despite rising greenhouse gas concentrations, and a heat surplus that should have cranked up the planetary thermostat.The greenhouse gas model has failed.
"This is nothing like anything we've seen since 1950," Kyle Swanson of the University of Wisconsin-Milwaukee said. "Cooling events since then had firm causes, like eruptions or large-magnitude La Ninas. This current cooling doesn't have one."The current cooling does have a cause. The scientists just don't understand climate the way they assume they do. The current climate models have failed.
The discrepancy gets to the heart of one of the toughest problems in climate science - identifying the difference between natural variability (like the occasional March snow storm) from human-induced change.From human-induced change??? The 1930s were some of the warmest years on record.James Hansen of NASA GISS:The Medieval Warm Period was warmer. How can the scientists model all the dozens of warming and cooling cycles in the past without invoking CO2 and human-induced change? Why is the current warming and now cooling cycle different and only because of CO2 and human-induced change? Nonsense.
The U.S. has warmed during the past century, but the warming hardly exceeds year-to-year variability. Indeed, in the U.S. the warmest decade was the 1930s and the warmest year was 1934.
But just what's causing the cooling is a mystery. Sinking water currents in the north Atlantic Ocean could be sucking heat down into the depths. Or an overabundance of tropical clouds may be reflecting more of the sun's energy than usual back out into space.The current climate models have failed. For all their science and models and mathematical algorithms, now they haven't got a clue as to what is going on. That should provide the reader with a lot of confidence.
"It is possible that a fraction of the most recent rapid warming since the 1970's was due to a free variation in climate,"
"Suggesting that the warming might possibly slow down or even stagnate for a few years before rapid warming commences again."
he warned that it's just a hiccup, and that humans' penchant for spewing greenhouse gases will certainly come back to haunt us.
"When the climate kicks back out of this state, we'll have explosive warming,"
"Thirty years of greenhouse gas radiative forcing will still be there and then bang, the warming will return and be very aggressive."The disconnect is amazing!