Per science-challenged warming alarmists and their propaganda, humans are constantly increasing their CO2 emissions, which causes the CO2 in the atmosphere to grow at a "accelerating" rate thus producing "accelerating" temperatures. Putting aside the definite maladjusted surface temperature scandal that indicates temperatures are significantly overstated, the propaganda hype about CO2 sounds half-way convincing, until one actually looks at the data. Unfortunately for the alarmists, the CO2 ppm evidence doesn't support the hype. So, what's going on?
Although humans indeed are adding CO2 to the atmosphere, the real force that is driving both CO2 growth rates and temperature changes is mostly natural phenomenon, including ENSO. Both El Niño and La Niña are powerful climatic conditions that create ocean and atmospheric conditions that swamp the small impact of humans adding CO2 to the biosphere.
The graph on the left provides a hint of what is happening. The red dots represent the years when El Niño ended and the blue dots years when La Niña ended. It's clear from the visual relationship that these Pacific Ocean oscillations are pushing temperatures around, as well as the CO2 growth rates. It makes sense since El Niño will warm the ocean allowing more CO2 to escape to the atmosphere; and, when cooled by La Niña the ocean releases less CO2. Throw in some long-term solar influence and then combine the ENSO with its powerful counterparts in the Atlantic Ocean basin, and it explains most of the climatic variability (weather and temperature changes) that is experienced without any human CO2 involvement.
(Note on the graph how the Mt. Pinatubo eruption in 1991 produced a cooling event that caused the current El Niño at the time to pale in comparison.)
Other greenhouse gas charts
