The temperature of the Earth's oceans is increasing . These are the results of four separate studies based on heat recordings taken from these bodies of water. The review and analysis, to be published published on January 11, 2019 in the journal Science show that the oceans are warming and will continue to heat up unless they are used 39 current energy and carbon dioxide production practices are scaling up over time
The authors of this new document also state that their findings unmask the notion of a "climate pause" that has been in force in the last 15 years. Instead, these scientists believe that, as one of the best indicators of global warming, trends in oceanic heat content may now suggest otherwise.
Researchers have collaborated in various institutions such as the National American Center for Atmospheric Research, the Chinese Academy of Sciences and the Energy and Resources Group at the University of California (Berkeley).
How Scientists Calculate Ocean Temperatures Today
Their work is based on the recordings made by Argo, a fleet of submarine robots that regularly perform round dives at 2000 meters below sea level. Robots, which are just over 4,000 in number, do so to take measurements such as ocean pH, salinity and, of course, temperature.
Argo has been operating since the last decade and has contributed with data (in conjunction with more traditional techniques such as bathymetry) necessary for three of the four studies on oceanic heat trends analyzed in the new paper Science .
A vintage aqueammograph. (Source: NOAA Photo Library)
These three studies evaluated oceanic temperature trends from 1
Therefore, the analysis of all these studies provided a better picture of current ocean trends over the last 40 years.
What happens to the oceans when environmental policy does not change?
The authors reached their conclusions after having imposed the Coupled Model Intercomparison Project 5 (CMIP5) model on their data. This model was used on the assumption that the emissions rate from fossil fuels will continue at a brisk pace as they do today, without any attempt to reduce or other alternatives to their use.
Under these conditions, the analysis was found in the upper part 2,000 meters of ocean waters in the world that are heated by 0.78 degrees Celsius, within the year 2100.
This increase may play less than pre-treatment; however, it also represents a much higher heating rate than indicated by previous studies on the subject. In addition, even that amount of heat is sufficient for because sea levels increase by 12 inches compared to those that are already today. This increase would be added to the significant waves expected as a result of losses of sea ice and glacier. The hottest oceans also increase the risk of meteorological anomalies such as increased rainfall, the formation of hurricanes and increases in the strength of the storm force .
The authors reported that this projected warm ocean effect is due to the fact that these seas absorb 93% of solar energy trapped by emissions such as excess carbon dioxide. In addition, ocean temperatures are not modulated by seasonal hurricanes or volcanic events, as they do on land. Therefore, it is a crucial indicator of climate stability (or rather of its lack).
The authors of the paper Science also observed that their results put the trends of ocean warming in line with other important global warming results.
These results could change the future?
This analysis suggests that actions to tackle climate change are more necessary than ever. Such measures can also help to address the problems of imminent loss of the Earth's surface due to the increase in sea levels and loss of marine life due to environmental changes as the increase in temperatures.
In addition, this new document also highlights the clear warning sign that 2018 was found on fourth year warmer on Earth. This discovery applies to land temperatures.
Now scientists like Zeke Hausfather of the Energy and Resources group (who also contributed to this last article on the subject) also believe that 2018 was the hottest year also under the waves.
. Image above: according to the latest analysis, the oceans are becoming increasingly hot. (Source: Belinda / Wikimedia Commons)