The climate disaster prevention window has shrunk so much that when scientists then make an estimate in 2029, it will be decided to what extent global warming can be curtailed by the end of the century.
Avoiding uncertain climate change requires reducing greenhouse gas emissions from coal, gas and oil by 43% by 2030, the United Nations warned on April 4, 2022. Less than eight years left. “The window is closing,” IPCC scientists explain.
Three warnings launched by Expert Group VI Report suggest that the leap was in line with previous work in 2014. Then, scientists wrote that “human impact on climate is obvious.” Now they have gone much further: “It is clear that human influence has warmed the atmosphere, the oceans and the earth.” Climate change is caused by humans.
But how is this “now or never” different from other ads? “This work may be the last to include the ability to keep global warming below 1.5ºC,” said Javier Andalus, a climate change official with environmentalists. “This is the sill of reality.”
Eight years ago, a technical analysis said that emissions did not stop growing from 1970 to 2010 and that “climate change mitigation requires substantial and sustained reductions in greenhouse gas emissions over the next few decades.”
This Monday, the 2022 report shows that “man-made greenhouse gas emissions have increased in all sectors since 2010.” He continued: “All ways to limit warming, be it 1.5ºC or 2ºC, involve rapid, deep and even immediate reductions in emissions.”
Fast and deep enough to reach the allowable maximum by 2025 and almost leave them halfway through 2030. By 2050 they should be almost equal to zero. Otherwise, the accumulation of greenhouse gases in the atmosphere will make it physically impossible for the earth not to continue warming beyond safely estimated limits.
The fact is that, for example, carbon dioxide (CO2), which is the main cause of the greenhouse effect, remains in the atmosphere for centuries. During its degradation, it is converted to CO2, which is absorbed into the ocean and retains its greenhouse effect. “It shows resilience, which makes its warming almost irreversible for more than 1,000 years,” said an investigation by the US Oceanic and Atmospheric Administration. The release of gas and its long life creates a concentration of CO2 Heat trap Do not stop growing.
So when the next report comes seven years from now, these milestones should have been reached, otherwise the inertia of the climate would have been unstoppable. “In August last year, the IPCC warned that planetary degradation processes were intensifying, which would accelerate climate change and lead to the crossing of important points,” Andalus said. Although “these warnings from science are less useful,” the report “is a new call to action because it’s too late,” he concludes.
“This is the first report of this magnitude to be published since the ratification of the Paris Agreement in 2015, and it will probably be the last to define our path to a warm world at only 1.5 ° C,” they said. Climate. “By the end of this decade, the world must reach its most important milestone – a 45% reduction in emissions.”
To achieve this, it is necessary to switch from fossil fuels to “clean energy sources or sources with very low emissions, such as renewable or carbon capture.” In this regard, there are also flying targets: to leave 95% of coal, 60% of oil and 45% of current gas by 2050. “The game is over for fossil fuels,” said Kaisa Kosonen of Greenpeace.
If in 2014 a technical warning explained that “recent climate change has had a far-reaching impact on humans and ecosystems,” in August 2021 it reaffirmed that “the scale of recent climate change and its current state are unprecedented in centuries and even millennia.”
“This latest report is a plethora of broken promises,” said UN Secretary-General Antonio Guterres. This refers to the increase in the amount of gas that the Earth has experienced since the 2014 warning and the fact that countries’ plans to exploit oil, gas and coal in the coming years will include more CO2 than is mathematically consistent with the limit on global warming. Below 2ºC.
Scientists have no doubt that man-made climate change has already caused impacts, loss and damage to nature and humans. But what they also confirmed is that “the scale and scale of the impact is greater than expected.”
“How many more warnings do we need before we can take the necessary steps to prevent a climate crisis?” “Fossil fuels pollute the planet, impoverish people and fill their pockets [el presidente ruso] “Vladimir Putin,” he concluded.
Source: El Diario
I am Ida Scott, a journalist and content author with a passion for uncovering the truth. I have been writing professionally for Today Times Live since 2020 and specialize in political news. My career began when I was just 17; I had already developed a knack for research and an eye for detail which made me stand out from my peers.
