World Temperatures to increase above 1.5C threshold says WMO

By Rashaed Esson

Staff Writer

May 23, 2023 – It’s about get even hotter as the UN agency says scientists have warned that the world may experience rising temperatures above the 1.5 Celsius threshold, due to El Niño and human induced climate breakdown, which could have serious consequences putting us into uncharted territory, even though it was initially predicted that the chances of temperature rise above the 1.5C was zero.

This would be failing to keep the promise made by countries in 2015 under the Paris Climate Agreement to keep global temperatures lower than 1.5C above pre-industrial levels (1850 to 1900), following advice from scientists that warming beyond the superior level could be catastrophic resulting in irremediable outcomes.

The report published on Wednesday, May 17th, 2023, by the World Meteorological Organization (WMO), highlighted that there is a 66 percent chance of exceeding the 1.5 Celsius mark at least one year between 2023 and 2027.

However, according to Professor Petteri Taalas, Secretary General of WMO, the rise in temperature will not be permanent.

“This report does not mean that we will permanently exceed the 1.5C specified in the Paris agreement, which refers to long-term warming over many years. However, WMO is sounding the alarm that we will breach the 1.5C level on a temporary basis with increasing frequency.”

Climate breakdown from human activity and the development of the El Niño weather system, as La Niña ends, creates heat waves across the globe.

The La Niña phase, which the world was in for the past three years, had diminished high temperatures around the world.  Now with El Niño, which is expected to develop in the coming months, there is a 98 percent chance that at least one of the next five years will be the hottest ever recorded, scientists say.

It is predicted that each year from 2023 to 2027, the global near-surface temperature will be between 1.1C and 1.8C, above the highlighted pre-industrial levels.

Despite the fact that this rise in temperature is said to be temporary, the effects should not be taken lightly, especially since the world is already seeing negative impacts of warming.

Rising temperatures can lead to serious outcomes, such as death by heatwaves, which from 2016 to 2021, were above the five-year average in every heat-period, with a total of 12,598 excess deaths (9.3% above average, 119 average excess deaths per day; longer droughts; wildfires; shrinking of glaciers and ice sheets; wind intensity and rainfall from tropical cyclones, as well as other serious effects.

Additionally, there will likely be less rainfall in the Amazon, Central America, Australia and Indonesia, according to the report.

For the Amazon, this poses a threat to the region’s rainforest which is what it’s known for. Scientists fear the warming and human deforestation could destroy the region, turning it into more of a savanna.

November of this year will see the meeting of   governments for the Cop28 UN climate summit, where progress towards meeting the goals of the Paris agreement will be examined. The “global stock take”, as the assessment is called, will likely highlight that the world is not close to  reducing greenhouse gas emissions by the stipulated  43 percent this decade that is required to have a good chance of limiting temperature rises to 1.5C.