Introduction
The Amazon, one of the most rich and diverse biomes on the planet, is facing an unprecedented crisis. Deforestation and climate change are pushing the Amazon forest towards a dangerous tipping point, which could lead to irreversible changes in the region. According to a new article published in the journal Nature, if deforestation reaches 22% to 28% of the Amazon, in addition to a temperature increase of 1.5 °C to 1.9 °C, the biome could reach a point of no return as early as the 2040s.
The Tipping Point
Researchers have concluded that exceeding this threshold of deforestation and global temperature could cause more than two-thirds of the forest to degrade or transform into a savanna ecosystem. This would have devastating consequences for the biodiversity and ecosystems of the region. Currently, around 17% of the Pan-Amazon has already been deforested, and all indications are that the Earth will exceed the warming of 1.5 °C above pre-industrial levels.
Consequences
Studies warn that it is increasingly likely that we will exceed 2°C of warming by 2050. In the worst-case scenario, “this critical threshold [in the Amazon] could be reached as early as the 2040s,” said Nico Wunderling, lead author of the article and researcher at the Potsdam Institute for Climate Impact Research in Germany. “Although I am a bit more optimistic: if the current trends [of decreasing] deforestation in Brazil continue, perhaps we will not reach [the tipping point] until the middle of the century.”
Prevention
“We can say with certainty that the more deforestation occurs, the lower this threshold of global warming will be,” said Arie Staal, co-author of the study and assistant professor at the University of Amsterdam. This highlights the importance of reducing deforestation and greenhouse gas emissions to prevent the Amazon from reaching this tipping point.
Conclusion
The Amazon is at a crossroads. The actions we take in the next few years will determine the future of the region and the planet. It is essential that governments, organizations, and individuals work together to reduce deforestation and greenhouse gas emissions, and to protect the Amazon and its ecosystems.
Source / Reference
This article was originally published on Mongabay