Anthropogenic factor has a huge impactto the environment. Today, researchers around the world agree that rapid climate change is caused by human activities. The problem, as you know, is the rise in temperature. Today, a third of all plant and animal species are threatened with extinction. The results of a study published in the journal Proceedings of the National Academy of Sciences indicate that in just 50 years there will be no rhinos, zebras, elephants, lions, and many other animals on Earth. Moreover, if climate change continues at the same rate, the situation may worsen over time.
In a study on the impact of humanity onecosystems around the world have studied recent extinctions caused by climate change, as well as various forecasts of climate models. According to the authors of the study, their work is probably the first of its kind. The fact is that it is designed to evaluate large-scale models of extinction due to the climate crisis, using data from recent extinctions and the speed of species development. However, to date, this work is the last among a series of scientific studies on the sixth mass extinction of wildlife.
Data on past extinctions help predict new disasters
University of Arizona Research Teamused data on 538 species at 581 sites worldwide and focused on species that were studied in the same place with an interval of at least 10 years. They found that 44% of 538 species have already become extinct in one or more places where they previously inhabited. They also generated climate data through measurements taken during the earliest study of each site and in later studies.
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According to The Independent, analyzingchange of 19 climatic variables in each area, scientists were able to determine which variables contribute to local extinction and how many changes the species can take before it dies out. Moreover, the researchers also evaluated how fast these or those species can move to avoid rapid environmental changes and temperature increases. The researchers' further goal is to bring together all pieces of information for each species. Then scientists will be able to provide detailed estimates of global extinction rates for hundreds of plant and animal species.
The results of the study showed that mostspecies will not be able to move quickly enough to other regions to avoid extinction. The researchers came to this conclusion, based on past speeds of species. Instead, many species are able to learn to withstand a slight increase in maximum temperature, but only to a certain level. About 50% of the species became victims of local extinction if the maximum temperatures increased by more than 0.5 ° C and 95% died out if the temperatures increased by more than 2.9 ° C.
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One way or another, species extinction forecasts dependon how much warmer the local climate will be in the future. If world leaders adhere to the Paris Agreement, then less than two out of every 10 species of plants and animals on Earth by 2070 will be lost. But if temperatures continue to increase, losses may amount to more than a third or even half of all species of animals and plants.