Over 66 million years of everything. Scientists have analysed the oceanic debris and how they have contributed to the change in Earthâs climate over these long years. It is really obvious for the fact that Earthâs climate has been continuously changing for many decades. The climate we are experiencing now is very different from the climate that our ancestors have experienced in their times. This is all amazing and surprising at the same time that how Earthâs climatic conditions have changed over the years. And now, this new discovery is revealing many important factors that contributed to the process of this major change.
These states are continuously affected by the tilt of the Earthâs axis; and the shape of its orbit around the Sun as per the researchers. Based on their findings published in the journal Science, Team Senogrid has developed; a climate reference curve to show continuous records of the past; and how climate has changed since the extinction of dinosaurs.
âWe use the Senogrid to understand what the Earthâs normal climate change; and variations are and how quickly the Earth has recovered from past events,â said Dr. Anna Joy Drury the co-author of the study at UCL Earth Sciences in London. She added, âWhen we show that the Earth has experienced warmer climate before; these were characteristics of climate change, which was quite different from our modern world.â
The samples collected from sea level for more than five decades were analyzed by an international research team. Scientists have performed a mathematical analysis to identify four climatic conditions associated with changes in greenhouse gas emissions.
For instance, researchers say that during the Paleocene-Eocene Thermal Maximum (PETM) period, about 55 million years ago, rapid global warming caused the climate to become a hot state, which is associated with the release of large amounts of carbon into the atmosphere.
During the Eocene, about 34 million years ago, ice sheets began to form in Antarctica; as atmospheric carbon dioxide levels declined and the climate changed to a coolhouse state. Thomas Westerhold, the author of the Bremen Centre for Marine Environmental Sciences in Germany said that âWe now know more precisely when the planet was hotter or colder, and better understand the inherent dynamics and the processes that lead to it. Those ones of particular interests are the fact that 66 to 34 million years ago; the planet was significantly warmer than it is today because it represents; a parallel to the past that could lead to future anthropogenic changes.â
According to the researchers, the Earthâs climate; has been an ice house for the past three million years, with hot and cold seasons.
Climate change, Ocean, Climate variability and change, Scientist, Earth, James Zachos
World news – GB – Oceanic Debris reveals major changes in Earthâs Climate – FoxExclusive