Fire effects on ecosystems

Fire has shaped terrestrial ecosystems for millions of years, but a warming climate is altering where, when, and how intensely landscapes burn, pushing fire regimes beyond the historical ranges that many forests evolved with. Researchers study how shifts in wildfire activity affect carbon storage, soil structure, and the capacity of ecosystems like boreal forests to recover — questions that carry direct consequences for global greenhouse gas budgets, since large fires can release centuries of accumulated carbon in a matter of weeks. A central open question is how ecosystem resilience will hold up under compounding pressures: whether forests that burn more frequently can regenerate fast enough to maintain their carbon sink function, or whether repeated disturbance tips them into new, diminished states. Remote sensing and global emissions modeling are expanding the ability to track these dynamics at scale, but translating that data into reliable projections of future fire-climate feedbacks remains an active and urgent challenge.

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119,340

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1,892,676

Keywords

Climate ChangeForest FiresWildfire ActivityGlobal EmissionsFire RegimesBoreal Forests