Seawater affects global temperatures

The US scientist said that the temperature of the ocean in the Pacific equator could affect global temperatures in each stage, contrary to skepticism about the global warming as previous warnings.

In recent years, a cooler Pacific ocean surface temperature has stabilized the global average temperature even when greenhouse gas emissions have increased.

The sea surface temperature in the Pacific Ocean occurs naturally and warmly. This suggests that the slowdown in the global temperature rise recorded over the past 15 years is not an interruption of global warming, which is related to the temperature of tropical waters and chains. Pacific religion becomes cooler.

As the Pacific changes to a warm period, long-term trends including global temperatures may skyrocket. The results were studied by Shang-Ping Xie, a climate scientist at the University of California, USA, Livescience reported.

Earlier this month, the proportion of atmospheric CO ₂ measured in Hawaii was more than 400ppm, the highest level in human history. This exceeded the threshold at least 3 million years ago. However, over the past 15 years, the global average temperature seems to be more stable, temperatures have not increased as expected, making many people skeptical about climate change.

Artwork of thermometer measuring earth temperature.(Photo: Shutterstock)

Ping Xie said: "Last year we witnessed the record hot summer in the US and the narrowing of the Arctic sea ice, all of which are consistent with the general warming of the climate. However, When looking at the global temperature graph, 15 years through temperature almost goes in a straight line, the concentration of CO2 in the atmosphere increases but the earth does not warm up, there seems to be something very strange happening".

Ping Xie and colleagues explain this mystery using climate models and measurable data over the past 130 years."In the model we divide it into two causes, first because humans increase the global average temperature, secondly because the Pacific Ocean is cooler, pulling down the temperature curve, causing the earth to almost in equilibrium , ' said Ping Xie.

The effects of El Nino and La Nina also produce similar results, they are part of the natural oscillation process of the ocean-atmosphere system that occurs every 3-4 years, which can affect the time weather and global climate conditions. El Nino is characterized by a warmer average temperature in the equatorial Pacific waters. As for La Nina phenomenon, the temperature of the sea waters is cooler than average.

The warm and cool period of the Pacific in Ping Xie's study appears longer than the El Nino and La Nina cycles. Previously, the earth experienced a period of cooling in the Pacific from 1940 to 1970 before it became warmer in the 1970s and 1990s.

The model of scientific experiments cannot predict when the current cooling time will end, but when the sea water changes to a warmer state, the global temperature will heat up quickly. There are still many unknowns about the interaction between Pacific Ocean warming and cooling with people emitting greenhouse gases that alter the earth's climate.