Spring Campaigne 2025 - Green up JU OŠ "Mustafa Pećanin" , Montenegro

2025-06-17T20:32:19Z

Activity 4
As part of the GLOBE Carbon Activity 4, we learned how trees and plants participate in the global carbon (CO₂) cycle. We discovered that forests act as a “living pump,” constantly exchanging carbon dioxide with the atmosphere.
🌿 Key facts we learned:
               •             During spring and summer, plants absorb CO₂ from the air through photosynthesis – during this time, CO₂ concentration decreases.
               •             During autumn and winter, plants photosynthesize less and respire more, which causes the CO₂ level in the atmosphere to increase.
               •             This pattern appears as a “zig-zag” line on the CO₂ graph from Mauna Loa (Hawaii).
               •             This natural cycle is called “Earth’s breathing.”
📊 Video analysis:
We watched the animation “Watching the Earth Breathe.” The video shows how CO₂ concentration and vegetation change throughout the year. We paused the video at:
               •             0:02 (end of March) → vegetation starts growing in the Northern Hemisphere.
               •             0:07 (end of August) → photosynthesis is at its peak.
               •             0:10 (end of November) → CO₂ rises again as most plants become dormant.
🌍 In another video, “How Much Carbon do Plants Take from the Atmosphere?”, we learned that different plants absorb different amounts of CO₂ depending on the type of vegetation and climate conditions.



When taking photos due to the lack of signal, it appears as if the cherry tree was photographed in different places. It's always the same location.