Dubbed AmazonFACE, the project will probe the forest’s remarkable ability to sequester carbon dioxide — an essential piece in the puzzle of world climate change. This will help scientists understand whether the region has a tipping point that could throw it into a state of irreversible decline. Such a feared event, also known as the Amazon forest dieback, would transform the world’s most biodiverse forest into a drier savannah-like landscape. FACE stands for Free Air CO2 Enrichment. This technology first developed by Brookhaven National Laboratory, located near New York City, has the ability to modify the surrounding environment of growing plants in a way that replicates future levels of atmospheric carbon dioxide concentrations. "Plants absorb carbon dioxide along with water and light to produce sugars and release oxygen. What happens when one increases this input? We don’t know," David Lapola, one of the leading scientists of the project, told The Associated Press. "We have evidence from similar experiments in temperate forests, but there is no guarantee that the behavior will be the same here in the Amazon."https://www.foxnews.com/world/brazil-builds-carbon-dioxide-emitting-towers-amazon-simulate-climate-change