September 29, 2022

Climate change: There’s a 50:50 chance the world will exceed 1.5C of warming soon

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Exceeding the limit is likely to be temporary – the temperature could drop again – but science suggests that a temporary overshot could also occur, the report said. Non-refundable changes To the planet

The report warns that temperatures will exceed 1.5 degrees Celsius for at least a year between 2022 and 2026, with a 93 percent chance that this period will see the warmest year on record. It is also almost certain that, on average, the next five years will be warmer than the last five.

In 2015, the probability that the world’s temperature would temporarily exceed 1.5C over the next five years was close to zero. These problems have been exacerbated since humans continued to emit greenhouse gases, primarily through the use of fossil fuels.

Scientists warn that the world needs to limit global warming to 1.5 degrees Celsius from pre-industrial temperatures to avoid the more devastating effects of the climate crisis. In 2015, most of the world signed the Paris Agreement, which aimed to limit the rise in temperature to 2C, but preferably 1.5C.

The world is already at least. 1.1 degrees Celsius warmer than before industrialization.

The UN report on the climate crisis confirms that the world already has solutions - but politics is on the way.
“This study shows – with a high level of scientific expertise – that we are temporarily approaching a lower goal. Paris Agreement On climate change, “WMO Secretary-General Petrie Talas said in a statement with the Global Annual to Decade Climate Update.

“The 1.5 ° C figure is not a random statistic,” he added. “This is an indication of the point at which the effects of climate change will be increasingly detrimental to humans and indeed to the entire planet.”

An authoritative meteorological report published in February by the Intergovernmental Panel on Climate Change The IPCC said that some of the changes caused by the planet warming above 1.5 degrees Celsius could be permanent – even if the planet cools down.

Even at 1.5C, many of the world’s coral reefs will disappear, and in some places permafrost can reach a tipping point. Permafrost is “permanently” frozen ground beneath much of the Arctic, shutting off large deposits of carbon dioxide (CO2). As it melts at warmer temperatures, it releases CO2 and contributes to climate change.

“A year of temperatures above 1.5 degrees Celsius does not mean that we have violated the Paris Agreement,” said Leon Harmanson of the UK’s Met Office, who led the report. But it also shows that we are getting closer. In a situation where 1.5 ° C can be extended for an extended period. “

Due to the heat wave in India, workers are using their helmets to pour water to cool themselves.
The WMO report was published on Hales. Heat wave in India and PakistanIn which experts questioned the ability of humans to survive in such high temperatures.
In the United States, the largest man-made reserves – Lake Med — have seen The water level dropped to an unusually low level. Over the past two months. Med is the key source of water for millions of people in California, Nevada and Arizona.

In California, which is in a state of complete drought, the state’s two largest reservoirs – Shasta Lake and Lake Orville – are at “extremely low levels” according to the US Drought Monitor.

California's two largest reservoirs are already at
The falling water level in the lake is the result of mega droughts caused by climate change in the American West. A study published by Nature Climate change The region from 2000 to 2021 was the driest in 1,200 years.

“As long as we continue to emit greenhouse gases, the temperature will continue to rise,” Talas said.

“And at the same time, our oceans will become warmer and more acidic, sea ice and glaciers will continue to melt, sea levels will continue to rise and our weather will become more severe. The Arctic heat will disproportionately.” There is more and what happens in the Arctic. It affects us all. “

Ice sheets and glaciers are melting. Arctic Will lead Rapid rise in sea levelWhich could be irreversible for centuries and catastrophic for the planet as the risk of severe flooding increases.

Andrew King, a lecturer in climate science at the University of Melbourne, said the report sheds light on how fast humans are warming the planet.

“Our greenhouse gas emissions are still at the nearest peak and we will continue to watch global warming until our emissions reach zero,” he said.

Pure zero refers to a state where the world minimizes its greenhouse gas emissions as much as possible, and accomplishes anything that is difficult to avoid, even to obtain carbon dioxide from the atmosphere. Be it using technology or planting trees.

King added: “If we fail to do this, we will have heat waves and bush fire conditions, as well as coral reefs that have gone unrecognized.”



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