AMAZON RAINFOREST
The Amazon Rainforest, often referred to as the "lungs of the Earth," is the world's largest tropical rainforest, covering approximately 5.5 million square kilometers (2.1 million square miles) and spanning across nine countries in South America, primarily Brazil, Peru, and Colombia. It is a crucial part of the Earth's ecosystem, playing a vital role in regulating the global climate and maintaining biodiversity.
Here are some key points about the Amazon Rainforest:
- The Amazon is one of the most biodiverse places on Earth, home to around 10% of all known species.
- It hosts millions of species, including plants, insects, birds, mammals, and reptiles. Many species are still undiscovered or undocumented.
- Notable species include the jaguar, harpy eagle, anaconda, and many types of frogs, birds, and monkeys
- The Amazon plays a critical role in absorbing carbon dioxide and producing oxygen. It helps regulate the planet’s carbon cycle and mitigates the effects of climate change.
- The forest’s transpiration process contributes significantly to the global water cycle, influencing weather patterns across the globe
- The Amazon is home to many indigenous tribes, some of whom live in isolation and depend on the forest for their livelihoods.
- These communities have rich cultural heritages and deep knowledge of the rainforest, which is often crucial for conservation efforts
- Governments, international organizations, and environmental groups are working to protect the Amazon through policies, protected areas, and reforestation projects.
- Brazil, which holds the largest portion of the Amazon, has taken various measures over the years to reduce deforestation, although enforcement and political will vary
- Scientists agree that safeguarding the Amazon rainforest is essential in the fight against global warming. However, recent data released on Wednesday reveals that large portions of the forest, crucial for the global climate, remain unprotected.
- According to an analysis by the nonprofit Amazon Conservation, nearly 40% of the Amazon regions that are most important for mitigating climate change have not received official protection as either nature reserves or indigenous lands.
- These unprotected regions are located in the far southwest of the Amazon in Peru and the far northeast in Brazil, French Guiana, and Suriname. These areas contain the tallest, most dense trees with the most continuous canopy cover, holding significant amounts of carbon.
- If destroyed by logging or fire, this carbon would be released into the atmosphere, contributing to global warming, explained Matt Finer, leader of Amazon Conservation’s Monitoring of the Andean Amazon Project (MAAP).
- Amazon Conservation's analysis used data from satellite imaging firm Planet, which employed lasers to create a 3D map of the forest, combined with machine learning models. The analysis only considered aboveground vegetation, not underground carbon in roots and soil.
- MAAP’s study found that 61% of the Amazon’s peak carbon areas are protected as indigenous reserves or other protected lands, but the remainder lacks official protection. In Brazil, Suriname, and French Guiana, just 51% of critical carbon areas are safeguarded. While Peru has protected a higher percentage of its key regions, some unprotected areas have been designated for logging
4. Why the Amazon matters?
- MAAP released an analysis last month indicating that the Amazon stores 71.5 billion tonnes of carbon, which is approximately double the global carbon dioxide emissions for 2022. The analysis revealed that over the decade leading up to 2022, the Amazon absorbed slightly more carbon than it emitted, a hopeful sign for the global climate.
- However, this remains a contentious issue, as other research suggests the Amazon may have shifted to becoming a carbon emitter.
- With the growing severity of human-caused climate change, the Amazon is considered one of the planet’s most crucial resources. Scientists warn that if the Amazon turns from a carbon sink—absorbing carbon from the atmosphere—into a source of emissions, the consequences could be catastrophic for the planet.
- This makes the data published by Amazon Conservation particularly significant, as it provides a critical guide to protecting the most carbon-rich areas
5. Amazon forest as a Lungs of the World
The Amazon rainforest is often referred to as the "lungs of the world" because of its critical role in producing oxygen and absorbing carbon dioxide. Here’s why:
- The Amazon rainforest generates a substantial portion of the Earth's oxygen through the process of photosynthesis. Plants and trees in the forest convert carbon dioxide (CO₂) into oxygen (O₂) as they grow.
- The forest acts as a significant carbon sink by absorbing large amounts of CO₂ from the atmosphere. This helps mitigate the effects of climate change by reducing the amount of greenhouse gases in the atmosphere
- The Amazon influences global weather patterns and climate. By regulating atmospheric carbon levels and contributing to the water cycle through evapotranspiration, it helps maintain climate stability
- The dense vegetation and diverse ecosystems support a wide range of plant and animal species, which play a role in maintaining the health and balance of the global environment
For Prelims: Rain Forest, Decidous forest, Mediterranian Forest
For Mains: GS III - Environment & ecology
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