Post by bhushraislam145 on Mar 4, 2024 1:30:10 GMT -5
Hundreds of experts participated in a report called Living Planet, a document presented by the World Wildlife Fund which is based on large scientific studies, which concludes that over time the planet has suffered great losses: The losses that the planet has had, Decrease in living beings From the 1970s to four years ago, the number of wild animals, mammals, birds, reptiles and amphibians has decreased by 60%. Freshwater animals reached 83%, due to overexploitation, sometimes involuntary, as in the case of river dolphins (accidentally captured in nets) and the loss of habitats. The report is based on the monitoring of more than 4 thousand species: camera censuses (tapirs in Costa Rica, tigers in India), track tracking (lynx in Russia), research programs or participatory sciences. For example, the elephant population in the Selous-Mikumi area of Tanzania declined by 66% between 2009 and 2014. Since 1976, the species has seen an 86% decline, mainly due to poaching. Why shouldn't we save the Earth? Species loss The extinction of species is another of the changes that the Earth has had, and due to climate change and pollution, several species have been affected, such as: birds, mammals, amphibians, corals and cycads, a ancient plant family.
Now the extinction rate is 100 to a thousand times higher than it was a few centuries ago, before human activities began to alter Earth's biology and chemistry. Which, for scientists, means that a mass extinction is occurring, the sixth in just 500 million years. Boundaries According to data from Expansión, scientists measured the impact of humanity's growing needs on "earth systems", since these have a critical threshold above which the world enters dangerous territory. For the climate, that threshold is +1.5ºC of warming (relative to the pre-industrial level), UN climate Europe Cell Phone Number List experts stressed in October. As if that were not enough, other types of planetary boundaries have also been crossed with the loss of species and the imbalance of nitrogen and phosphorus cycles (a result of the use of fertilizers and intensive livestock farming). For soil degradation, a red alert has been declared. Acidification of the ocean and freshwater sources is not far away. Regarding polluting chemicals, such as heavy metals and plastics, it is still not known what the critical threshold is. According to the WWF, technologies and better soil management slightly improved the renewal capacity of ecosystems but this did not compensate for man's ecological footprint three times greater than 50 years ago.
Declining forests In almost fifty years, almost 20% of the Amazon rainforest, the largest in the world, disappeared. Around the world, tropical forests continue to decline, mainly due to pressure from soy, palm oil and livestock entrepreneurs. Between 2000 and 2014, the world lost 920,000 km2 of intact forests, an area similar to France and Germany combined. According to satellite data, this rate grew by 20% from 2014 to 2016 compared to the previous 15 years. Polluted oceans Since 1950, more than 6 billion tons of seafood have been caught. Faced with the collapse of reserves, catches reached their maximum in 1996, and then fell little by little. By 2050 there will be more plastic than fish in the oceans Furthermore, the microplastics and waste that go into the sea are contaminating the species, so much so that over time they are dying and are also affecting the health of humans who consume marine animals.Some are in serious danger. In addition to Venice and its lagoon; the Italian city of Ferrara and its Po Delta wetlands; as well as the patriarchal basilica of Aquileia, on the northern coast of Italy, are at serious risk due to rising sea levels.