Monday, 23rd December 2024

Scientist worries the 'irreversible' changes to the Climate

Monday, 9th August 2021

World: The UN Panel on Climate Change issued a stern warning on Monday, saying the world was dangerously close to runaway warming - and that people were "unequivocally" to blame.

Greenhouse gas levels in the atmosphere are already high enough to warrant climate interruption for decades, if not centuries, experts warn in a statement by the Intergovernmental Panel on Climate Change (IPCC).

This is in addition to the deadly heat waves, huge hurricanes and other weather conditions that are occurring now and are likely to get worse.

The UN Secretary-General, who describes the report as a "red code for humanity", is calling for an end to the usage of coal and different highly polluting fossil fuels.

"The warning bells are deafening," Guterres said in a remark. This report should sound like a death knell for coal and fossil fuels, before it destroys our world. The IPCC report appears just three months before a significant UN climate convention, known as COP26, in Glasgow, Scotland, where countries will be under pressure to promise much more ambitious climate action and substantial funding to go along with it.

Based on more than 14,000 scientific studies, the report provides the most comprehensive and detailed picture to date of how climate change is changing the natural world - and what lies ahead.

Unless immediate, rapid and large-scale steps are taken to reduce emissions, the report says, the average global temperature within the next 20 years is likely to exceed the warming threshold of 1.5 degrees Celsius (2.7 degrees Fahrenheit).

So far, countries' promises to reduce emissions have been insufficient to reduce the level of greenhouse gases that have accumulated in the atmosphere.

Governments and fighters reacted with dismay to the findings.

British Prime Minister Boris Johnson, whose nation will host the climate convention, announced the subsequent decade would be 'central' to securing the future of our planet:

"I hope today's IPCC report is a wake-up call for the world to act now, before we engage in Glasgow in November for the crucial COP26 summit.

Unchangeable alteration

Emissions "unequivocally caused by human actions" had already raised the average world temperature by 1.1 ° C compared to the pre-industrial average and would have increased further 0.5C without the tempering impact of contamination in the atmosphere, report said.

This means that even if societies move away from fossil fuels, the temperature will rise again by the loss of the pollutants in the air.

Experts warn that an increase of more than 1.5C above the pre-industry average runaway could cause climate change with catastrophic consequences, such as heat so intense that people die when they are outside.

Any further warming also increases the intensity and frequency of heat extremes and heavy rainfall, as well as droughts in some regions. Because temperatures vary from year to year, specialists measure global warming in phrases of 20-year averages.

"We have all the proof we need to show that we are in a climate crisis," said Sonia Seneviratne, co-author of the IPCC, a climate scientist at ETH Zurich, who doubts whether she will have a fourth report. will report, said. "Policymakers have enough information. You may ask: Is it a sensible use of scientists' time if nothing is done?"

The warming of 1.1C already recorded was enough to release disastrous weather. This year, heat waves killed hundreds of people in the northwest of the Pacific and broke records around the world. Wildfires caused by heat and drought are sweeping away entire towns in the American West, releasing record carbon dioxide emissions from Siberian forests and pushing Greeks to escape by ferry.

"Every bit of warming matters," said IPCC co-author Ed Hawkins, a climate expert at the University of Reading in Britain. "The outcomes are getting worse and worse as we get warmer."

The ice of Greenland is "virtually certain" to continue melting and raising sea levels, which will rise for centuries as the oceans heat up and extend.

It is already very late to counter these specific changes. The best the world can do is slow it down so that countries have more time to prepare and adapt.

"We are now committed to certain aspects of climate change, some of which have been unchangeable for hundreds to thousands of years," stated IPCC co-author Tamsin Edwards, a climate expert at King's College London. "But the longer we limit warming, the longer we can withdraw or slow down the changes."