Synchronized leaf aging in the Amazon responsible for seasonal increases in photosynthesis

One hundred and fifty feet above the ground in the Amazonian rainforest, a vast ocean of green spreads out in every direction. The rainforest canopy is made up of mostly tropical evergreen trees, which take in enormous amounts of carbon from Earth's atmosphere. Understanding the carbon cycle in these forests - how carbon is stored in plants and soil and then returned to the atmosphere - is crucial to creating accurate models that predict how global climate will change in the future. Key to that