Abdullah Al-Haqim 
The Paris Climate Agreement in 2015 set an ambitious and necessary goal of maintaining global temperatures at 1.5 degrees Celsius above temperatures before the industrial revolution, but a study says, we may have passed this threshold several years ago.
Scientists at the Ocean Institute at the University of West Australia studied long -lived sponges in the Caribbean Sea region, and they created a timetable for the ocean temperature, dating back to the 18th century, and represents the first automatic record of the ocean temperature before the industrial revolution, and they concluded that the high degree of global warming reached 1.7%.
And while you say the study In the Nature Climate Change magazine, we have exceeded a threshold of 1.5% of global warming since 2020. Other scientists have wondered whether the data from only one part of the world is sufficient to capture the huge thermal complexity of our oceans.
The study reached this conclusion with the analysis of six solid sponges, a type of marine sponge, sticking to the underwater caves in the ocean. It is referred to as “natural archives” to slow their growth. Slow growth by part of the millimeter annually, allowing it to save climate data in its limestone structures, such as tree rings or ice samples.
By analyzing the levels of srinchium (SR) to calcium (CA) in these sponges, the team was able to calculate the water temperatures accurately dating back to 1700 and the presence of sponges in the Caribbean region was an additional advantage, as the main ocean currents do not distort temperatures. This data may be especially useful, as the direct human temperature -temperature dates dates back to approximately 1850.
Samples have been examined to determine their age using the uranium chain history, in addition to the levels of srunchium to calcium, carbon and boron counterparts (boron is used to calculate the levels of pH).
Although the new study was able to persuade the skeptics of its results during the evidence review phase, it is unlikely to succeed alone in removing the current consensus estimates of the amount of global global warming that actually occurred and estimated at 1.2 degrees Celsius according to many current estimates.
“I would like to include more records before calling for the rebuilding of the global temperature,” the New York Times, Dr. Halle Kilborn, told the New York Times, and with more research, as a team in Japan is studying the sponges of Okinawa – we may get these records soon.
