Objective of maintaining global warming below 2ºC is “dead”, according to the highlighted climatologist

The long -term objective of maintaining the global warming Below +2 ° C compared to the pre -industrial period, the maximum limit set by the Paris Agreement is “dead,” said a prominent American climatologist.

James Hansen, former head of NASA weather, and several scientists published this week a study in which they conclude that certain phenomena that are behind climate change have been underestimated.

His analysis of the current situation and his projections indicate that “the objective of the 2ºC is dead,” said Hansen in a presentation on Tuesday.

One of the ambitious scenarios raised by the IPCC – the group of climate experts created by mandate of the UN – based on a significant reduction in greenhouse gas emissions that could maintain global warming below that threshold is “now now Impossible, ”said the expert.

The reason, he explained, is that world consumption of energy “increases and will continue to increase” and “most of the energy continues to come from fossil fuels,” The main polluting gas emitters.

In addition to this energy transition too slow, the scientist and his team indicate in his study “a lack of realism in the evaluation of the weather”, arguing that this is more sensitive to the emissions of what was foreseen.

In his analysis, Hansen and his colleagues also examined the role of a change in maritime sector regulations in 2020, whose effects on the climate were believed to have been minimized.

This modification translated into a reduction in sulfur emissions, which reflected sunlight towards space and thus contributed to cooling the atmosphere.

Researchers also estimate that Atlantic southern circulation (CMA), a system of ocean currents that plays a fundamental role in climate regulation, will cease “in the next 20 to 30 years”, mainly as a result of the thaw.

This disappearance will cause “important problems, in particular a sea level rise of several meters”they warn, speaking of a “point of no return.”

According to its forecasts, it is likely that the world average temperature will be maintained in the coming years in +1.5 ° C or above the pre -industrial levels, before reaching the threshold of the +2 ° C in 2045.

Adopted almost ten years ago by almost all countries of the world, the Paris Agreement, which the United States recently announced that it was withdrawn for the second time, aims to maintain the increase in the world average temperature “well below 2ºC” compared to Pre -industrial levels and continue efforts to limit it to 1.5ºC.