The warming of the sea, increasingly acidic and with less oxygen, decreases marine life and puts the income and livelihoods of millions of people at risk according to United Nations experts, in addition to high water temperature, d ice makes the climate more extreme.
Increasing the size of the waves can increase the frequency of floods
The widespread emission of CO2 due to human action – the cause of the climate crisis – is changing the oceans on a scale never seen before. On the basis of absorbing gas and heat, the seas become warmer, more acidic and with shorter life. The resources that humanity has used over the centuries have diminished. The level of the oceans continues to rise in large areas where millions of people live.
“All humanity depends directly or indirectly on the oceans and the cryosphere [glaciers, ice and ice layers, and permafrost]” the IPCC report begins. Therefore, 80% of the Earth is of relevance to the degradation caused by the global warming of the Earth. A radical mutation “The sea and the summit may seem far-fetched to many, but we are all influenced by them. To get food, water, transportation, commerce, health or entertainment,” panel director Hyosung Lee said on Wednesday said.
However, the panel’s scientific review leaves no doubt: the sea is the main victim of CO production. With the greenhouse effect, 90% of the excess heat accumulated on Earth has gone into its water, w
hich is left with most of the excess carbon dioxide. result? The oceans have not stopped heating since the 1970s. The warming rate has doubled since 1993. CO2 has led to an acidification of the ocean (which prevents life), which also loses oxygen. The IPCC calculation reiterates that reducing the number of gases released into the atmosphere is the key to reducing these effects. “Today’s measures are critical to the future of the oceans and the cryosphere.”
Researcher Carolina Adler, one of the authors of the report, tells eldiario.es that no one would be safe from these results: “The report describes how these marine and terrestrial systems are intricately connected around the world. And this Affects everyone on earth ”. .
Great flood of the sea: from a century to a year
One of the safest and best known effects of climate change is sea level rise. UN scientists say the scale may seem small, averaging 3.6 mm per year, but it does not stop: “It keeps moving upward.” The acceleration of this phenomenon in recent decades is due to the “loss of ice in Greenland and Antarctica apart from warm land”, because the water is hot. Connects everything.
By 2100, development will be ten times faster than in the twentieth century. This increase is behind a real threat of catastrophe in the low-coastal areas where 670 million people live and multiplication of cases so far is rare, such as large sea floods that are multiplied by one hundred.
Historically, once in every century, water levels have increased drastically, but estimates suggest that they will become habitual and register once from the year 2050. “Depends on the place where the effects of marine flooding can be very severe,” the document states.
Reducing marine life: fishing lessThe abundance of the sea is in danger. In view of the deterioration of marine ecosystems, “the reduction in the global biomass of marine species, as well as the catching capacity of fishing banks, is low. It is both on the surface and in the deep sea,” the report said. This panorama directly endangers the way of life of communities dependent on the sea: “their income and even their livelihood”.
Translated means that fewer fish are released into a catastrophic combination of climate crisis and are the most sought after commercial species. In addition, many varieties are forced to change their distribution areas. The notice states that the mass of marine animals can fall by 15% and reduce the fishing capacity of the species by a quarter. In the wake of loss