Amazon goes from ‘carbon sink’ to carbon creator

The Amazon rainforest, once a carbon sink, now emits more CO2 than it absorbs, contributing to climate change. This shift is largely due to fires, often set for agriculture, and climate factors like higher temperatures and droughts. These conditions make the forest more vulnerable, leading to more emissions. The loss of trees reduces rainfall, exacerbating droughts and fires, creating a cycle of destruction.

What has changed about the Amazon rainforest's role in the carbon cycle?

• It is absorbing more carbon dioxide than before.

• It has stopped affecting the carbon cycle.

• It is now emitting more carbon dioxide than it absorbs.

• It has become a larger carbon sink.

What is the primary cause of the Amazon's carbon emissions?

• Decreased temperatures

• Fires, often set to clear land for agriculture

• Increased rainfall

• Natural forest growth

How do rising temperatures and droughts affect the Amazon?

• They increase the forest's biodiversity.

• They help the forest absorb more carbon.

• They have no significant impact.

• They turn the southeastern Amazon into a carbon source.

What is a consequence of deforestation and fires in the Amazon?

• An increase in forest area

• A decrease in global temperatures

• More severe droughts and heat waves

• Increased rainfall in the region

What effect do fewer trees have on the Amazon's climate?

• They cause more severe droughts and heat waves.

• They lead to more rainfall.

• They stabilize the climate.

• They have no effect on the climate.