Humans have pushed the climate to its warmest period in 2,000 years, says Climate Change report



Humans have pushed the climate to its warmest period in 2,000 years, says Climate Change report

Humans are the cause of Climate Change for the last 2,000 years.

Photo: ANGELOS TZORTZINIS / AFP / Getty Images

The human being has had an “undeniable” role in the warming of the atmosphere, the ocean and the soil, concludes a new report from the Intergovernmental Group of Experts on Climate Change (IPCC), which warns that the rise in temperatures has not been compared in the last 2,000 years.

The study, which takes advantage of improvements in paleoclimatic research, shows that the current temperature rise is comparable to what is considered to be the warmest period in the last 100,000 years, occurred 6,500 ago (the so-called Holocene climatic maximum).

In the last two millennia, the graph shows a stable global mean temperature in the first thousand years, where the optimal medieval warmth occurred, to decrease progressively at the beginning of the second millennium (with the so-called Little Ice Age) and rise again dramatically since the mid-19th century.

IPCC experts estimate that the global temperature is 1.1 degrees higher now than it was in the pre-industrial era (1850-1900), and that human activity has caused the majority of that rise (scientists calculate the “human factor” at 1.07 degrees).

The report considers it probable that human activity has also favored changes in rainfall since the middle of the last century, as well as in the greater salinity of ocean waters or the reduction of glaciers.

Current changes in the climate are “unprecedented” in recent centuries and even millennia, say the scientists authors of the report.

For example, according to IPCC experts, the current concentration in the atmosphere of carbon dioxide, the main greenhouse gas, exceeds 410 particles per million, the highest rate in the last two million years.

Sea level has risen an average of 20 centimeters between 1901 and 2018, but it does annually It rose about 1.3 millimeters in the first seven decades of the last century, now it does about 3.7 millimeters, the report warns., which indicates that the ocean has suffered its greatest warming in 3,000 years in the last century.

In the past decade, the ice area in the Arctic reached its lowest level since at least 1850, underlines the document, which predicts that before 2050 that ocean will be practically without sea ice in at least one of its boreal summers.

With information from Efe.

Continue Reading: “The consequences of climate change are irreversible,” warns the UN in the most comprehensive report to date



Source link


Related Posts

Constipation can be combated with these juices

Constipation can be combated with these juices

The constipation is one of the worst evil that causes slow digestion; Millions of people in the world suffer from it and it can be the result of different situations, for example, work stress, worry and even anxiety. In AmericanPost.News We have revealed some remedies that could be totally functional, even much more than the…
Ozark: Meet Season 4 Villain Javi Elizonndro

Ozark: Meet Season 4 Villain Javi Elizonndro

The Byrdes are finally getting the hang of this money laundering business in Ozarks from Netflix. But when one problem disappears, another appears in its place. The fourth season, which will be released on Friday, January 21, will introduce an “unpredictable” character called Javi Elizondro, to whom actor Alfonso Herrera says the Byrdes should be…
Grammy 2022: They reveal a new date for the postponed ceremony

Grammy 2022: They reveal a new date for the postponed ceremony

The new date has been announced for the completion of the Grammys 2022, which were postponed due to the rise in infections by Covid-19 in United States. The Recording Academy announced that Las Vegas, Nevada will host the award ceremony, which will be hosted by comedian Trevor Noah, host of ‘The Daily Show’ from Comedy…
Kimberly Loaiza and husband star in a strange moment when dancing to BTS music

Kimberly Loaiza and husband star in a strange moment when dancing to BTS music

Due to its relevance during the year Kimberly Loaiza and JD Pantoja were invited to participate in the “YouTube Rewind 2018”, this in order to be part of some scenes of the video. Starting at minute 1:10, this moment begins that caused mixed feelings among the group of BTS fans and those who enjoy this…
Ingrid Betancourt of Colombia announces presidential candidacy

Ingrid Betancourt of Colombia announces presidential candidacy

Ingrid Betancourt, a Colombian politician who was kidnapped and held hostage for six years by an armed rebel group, has launched a new presidential candidacy. The announcement comes nearly two decades after the former congresswoman was kidnapped by the Revolutionary Armed Forces of Colombia (FARC) in 2002 while campaigning for the presidency of Colombia. Colombia.…