NEET BIOLOGY

Detailed explanation-1: -Worldwide, they suck up 2.4 billion metric tons of carbon each year, with the massive Amazon absorbing a quarter of that total. In principle, climate change should help forests take up even more carbon dioxide, as warmer temperatures and increased levels of the gas should encourage trees to grow.

Detailed explanation-2: -Not just for food, water, wood and medicines, but to help stabilise the climate-around 76 billion tonnes of carbon is stored in the Amazon rainforest., The trees in the Amazon also release 20 billion tonnes of water into the atmosphere per day, playing a critical role in global and regional carbon and water cycles.

Detailed explanation-3: -If rainforests were Earth’s respiratory system, the Amazon would be a full lung. The region holds half of the tropics’ undisturbed forests. Its flora absorb 1.5bn tonnes of carbon dioxide (CO2) a year, equivalent to 4% of emissions from fossil fuels. This lung is being deforested at cancerous rates.

Detailed explanation-4: -Portions of the Amazon rainforest are now releasing more carbon dioxide than they absorb, disrupting an important balancing act that signals a worsening of the climate crisis, according to a new study.

Detailed explanation-5: -The Amazon is estimated to contain about 123 billion tons of carbon above and below ground, and is one of Earth’s most important terrestrial carbon reserves. As global fossil-fuel burning has risen, the Amazon has absorbed CO2 from the atmosphere, helping to moderate global climate.