Global warming will exceed the 1,5°C limit this year, says former NASA scientist

James hansen, the former NASA scientist responsible for warning the world about the dangers of climate change in the 1980s, said the global warming caused by the burning of fossil fuels, amplified by the climate event El Niño – which occurs naturally – will raise temperatures to up to 1,7°C above the average experienced before industrialization by May this year.

What are La Niña and El Niño climate phenomena?

El Niño and La Niña are climate phenomena known as El Niño-Southern Oscillation (ENSO), which affect global climate conditions, especially in the Pacific Ocean region. During El Niño, surface waters in the equatorial Pacific warm, causing a significant impact on global climate. This results in changes in wind patterns and rainfall distribution, leading to droughts and floods in different parts of the world. Conversely, during La Niña, waters in the central and eastern Pacific become colder than normal, causing opposite changes in weather patterns, such as heavy rainfall and wetter conditions in some regions.

This high temperature will not, in itself, break the commitment made by world governments to limit global warming to 1,5ºC above the period before the dominance of coal, oil and gas. Scientists say the 1,5°C upper limit cannot be considered breached until a series of years exceeds that limit, at which point it is considered most likely to happen. sometime in the 2030s.

“We are now in the process of moving to a 1,5°C world”, Hansen said..

In a bulletin issued with two other climate researchers, Hansen states that “the maximum global warming limit of 1,5ºC has been exceeded for all practical purposes because the great planetary energy imbalance ensures that the global temperature is rising even further”. 

Global heating will pass 1.5C threshold this year, top ex-NASA scientist says https://t.co/bpDeanBtox

- Guardian news (@guardiannews) January 8, 2024

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