Global warming is intensifying El Niño weather
To see if something new was happening, the authors of this paper looked at the relationship between regional climate and the El Niño/La Niña. El Niño events may be in the process of becoming more intense due to a causal link between climate change and intensifying El Niño events. Are the warming temperatures and El Niño connected? Most scientists agree that the warming trend ( to is the hottest five-year.
The winds push warm surface ocean water from South America west towards Asia and Australia, and cold water wells up from below in the east to take its place along South America.
This creates a temperature disparity across the Pacific, which also keeps the trade winds blowing the temperature difference and the trade winds reinforce each other. The accumulation of warm water in the west adds heat to the air, causing it to rise and create unstable weather, which is why the western Pacific region is warm and rainy.
El Niño and La Niña: Their Impact on the Environment
Cool, drier air is usually found on the eastern side of the Pacific. The warm water that is normally pushed towards the western Pacific washes back across, piling up on the east side of the Pacific from California to Chile, causing rain and storms.
And as the warmer ocean waters release excess energy heat into the atmosphere, global temperatures rise. Cooler temperatures and less rainfall occur along the coast of South America.
Climate Science Glossary
The changing weather patterns can having damaging impacts on agriculture, fisheries, ecosystems, health, energy demand and air quality, and increase the risks of wildfires around the globe.
Fighting wildfires in Indonesia. It has already increased temperatures in the central and eastern Pacific up to 2.
The implications from this analysis should be readily apparent. In fact, this is a point made repeatedly on this website eg - here and here.
This view is confirmed in other analyses. There have been various attempts to filter out the ENSO signal from the temperature record.
Environmental Impact of El Niño and La Niña | guiadeayuntamientos.info
What remains is a warming trend with less variability: Surface air temperature records with ENSO signal removed. Foster and Rahmstorf used a multiple linear regression approach to filter out the effects of volcanic and solar activity and ENSO. This corresponds to 0. Overall, from toENSO can only explain approximately 2. Ultimately, all the data analysis shouldn't distract us from the physical reality of what is happening to our climate.
Over the past 4 decades, oceans all over the globe have been accumulating heat Levitus ; Nuccitelli et al. This points to an energy imbalance responsible for the long term trend Wong From Nuccitelli et al.
Hence the irony in Bob Carter's conclusion "The close relationship between ENSO and global temperature leaves little room for any warming driven by human carbon dioxide emissions".