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Explainers

Overviews of climate change science, solutions, and related topics, written by scientists and experts.

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A high riverbank on the left side of the photo is slumping and sliding into a river on the right side. Thin evergreen trees are visible in the background.
Explainer

Permafrost

Permafrost is ground that remains frozen for two or more years. The warming of the Arctic is thawing vast stretches of permafrost, creating a feedback loop that is accelerating climate change.
the Gondwana Rainforest of Queensland, Australia
Explainer

Forests and Climate Change

Forests take in carbon from the air and store it in wood, plant matter, and under the soil. Restoring them is an important option for combating climate change.
firefighter battling a wildfire
Explainer

Wildfires

Wildfires are becoming more frequent and severe as a result of climate change, as forests in arid parts of the world become hotter and drier.
airplane
Explainer

Aviation

Aviation emissions are responsible for around 5% of climate warming, and this share is rising.
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