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United Nations IPCC launches strong warning on climate change: it is “red code for humanity”

United Nations IPCC launches strong warning on climate change: it is “red code for humanity”

The ruling of the leading scientists of the world climate they launched theirs tougher warning about the climate emergency increasingly serious, given that some of the changes already underway are believed to be “Irreversible” for centuries to come. A highly anticipated report from the United Nations Climate Committee warns that limiting the global warming at nearly 1.5 degrees Celsius or even 2 degrees Celsius above pre-industrial levels “it will be out of reach” in the next two decades without immediate, rapid, large-scale reductions in greenhouse gas emissions.

To be sure, the 1.5 degrees Celsius threshold is a crucial global target because beyond this level, so-called tipping points become more likely. Points of no return refer to a irreversible change in the climate system, which blocks further global warming. At 2 degrees Celsius of global warming, the report states that the extremes of heat would often reach critical tolerances for agriculture and health.

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United Nations Secretary-General António Guterres described the report as “a red code for humanity“. “The alarm bells are deafening and the evidence is irrefutable: Greenhouse gas emissions from burning fossil fuels and deforestation are choking our planet and putting billions of people at immediate risk,” he said.

The latest findings from the Intergovernmental Panel on climate changes, approved by 195 member states, address the physical science underpinnings of climate change and outline how humans are altering the planet. It is the first part of four reports published as part of the current cycle of IPCC evaluation.

The first part of the IPCC’s sixth assessment report provides world leaders with one golden synthesis of modern climate science ahead of the UN climate talks, known as COP26, in early November.

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What does the report say?

Climate scientists said it is “unambiguous” how human influence has warmed the global climate system, given the observed changes that have already impacted every region of the planet. Some of these changes in climate researchers have been described as “Without precedents”, While others – such as the continued increase of sea ​​level – they were designed as “irreversible for hundreds or thousands of years”.

The report shows that greenhouse gas emissions from human activities are responsible for about 1.1 degrees Celsius of warming from 1850-1900 and notes that, on average, over the next 20 years, global temperature is expected to reach or exceed 1.5 degrees Celsius of heating. The United Nations Climate Committee says “strong and sustained” reductions in carbon and other greenhouse gas emissions would limit climate change. Benefits such as improved air quality would come quickly, while it may take 20 to 30 years for global temperatures to stabilize.

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The IPCC report makes it clear that it’s not just about temperature. In fact, he argues that the climate change it is bringing different changes in different regions and it will all increase with further global warming. These changes include heavier rainfall and associated floods, more intense drought in many regions, coastal areas to see continued sea level rise throughout the 21st century, amplification of permafrost melt, ocean acidification, among many others. One follows series of extreme weather events around the world. For example, in just the past few weeks, floods have wreaked havoc in Europe, China and India, plumes of toxic smoke have blanketed Siberia, and wildfires have burned out of control in the United States, Canada, Greece and Turkey.

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Politicians are under enormous pressure to keep the promises made under theParis Agreement. However, even as global leaders publicly acknowledge the need to move to a low-carbon society, the world’s dependence on fossil fuels is expected to worsen further.