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ClimateQuiet 6d · day 11

Drought and wildfire weaken Earth's carbon sinks, study finds

Global satellite analysis reveals compound events degrade ecosystems' ability to absorb CO2 and convert rainfall into carbon gain.

newest coverage 5d agosummary written 5d ago6 pieces12 likes & upvotes Google NewsBlueskyMastodon

What to know

  • A global satellite study identifies 180,461 compound drought-fire events between 2001–2022, revealing they trigger a dangerous decoupling: vegetation becomes hypersensitive to rainfall while losing efficiency at converting water into stored carbon.
  • Over half of vegetated areas (54.6%) show increased precipitation sensitivity after compound events, signaling ecosystems are entering fragile recovery states where normal carbon-water relationships break down.
  • The finding threatens Earth's natural carbon sinks at a critical moment: as climate change intensifies both droughts and wildfires, weakened ecosystems lose their ability to offset atmospheric CO2.

Huipeng Xi Researcher, Tongji UniversityQunming Wang Researcher, Tongji University

Drought and wildfire weaken Earth's carbon sinks, study finds
earth.com

How it unfolded 3 developments, newest first · click a bar or a number to jump articlesposts

Peak 1 piece in 3h at Oct 28, 12 AM; 6 pieces over 11 days (2 articles · 4 posts) Oct 28, 12 AM — 1 piece · 1 article — Google News 1Oct 28, 3 AM — quietOct 28, 6 AM — quietOct 28, 9 AM — quietOct 28, 12 PM — quietOct 28, 3 PM — quietOct 28, 6 PM — quietOct 28, 9 PM — quietOct 29, 12 AM — quietOct 29, 3 AM — quietOct 29, 6 AM — quietOct 29, 9 AM — quietOct 29, 12 PM — quietOct 29, 3 PM — quietOct 29, 6 PM — quietOct 29, 9 PM — quietOct 30, 12 AM — quietOct 30, 3 AM — quietOct 30, 6 AM — quietOct 30, 9 AM — quietOct 30, 12 PM — quietOct 30, 3 PM — quietOct 30, 6 PM — quietOct 30, 9 PM — quietOct 31, 12 AM — quietOct 31, 3 AM — quietOct 31, 6 AM — 1 piece · 1 article — Google News 1Oct 31, 9 AM — 1 piece · 1 post — Bluesky 1Oct 31, 12 PM — quietOct 31, 3 PM — quietOct 31, 6 PM — quietOct 31, 9 PM — quietNov 1, 12 AM — quietNov 1, 2 AM — quietNov 1, 5 AM — 1 piece · 1 post — Bluesky 1Nov 1, 8 AM — quietNov 1, 11 AM — quietNov 1, 2 PM — quietNov 1, 5 PM — quietNov 1, 8 PM — quietNov 1, 11 PM — quietNov 2, 2 AM — quietNov 2, 5 AM — 1 piece · 1 post — Bluesky 1Nov 2, 8 AM — quietNov 2, 11 AM — quietNov 2, 2 PM — quietNov 2, 5 PM — 1 piece · 1 post — Mastodon 1Nov 2, 8 PM — quietNov 2, 11 PM — quietNov 3, 2 AM — quietNov 3, 5 AM — quietNov 3, 8 AM — quietNov 3, 11 AM — quietNov 3, 2 PM — quietNov 3, 5 PM — quietNov 3, 8 PM — quietNov 3, 11 PM — quietNov 4, 2 AM — quietNov 4, 5 AM — quietNov 4, 8 AM — quietNov 4, 11 AM — quietNov 4, 2 PM — quietNov 4, 5 PM — quietNov 4, 8 PM — quietNov 4, 11 PM — quietNov 5, 2 AM — quietNov 5, 5 AM — quietNov 5, 8 AM — quietNov 5, 11 AM — quietNov 5, 2 PM — quietNov 5, 5 PM — quietNov 5, 8 PM — quietNov 5, 11 PM — quietNov 6, 2 AM — quietNov 6, 5 AM — quietNov 6, 8 AM — quietNov 6, 11 AM — quietNov 6, 2 PM — quietNov 6, 5 PM — quietNov 6, 8 PM — quietNov 6, 11 PM — quietYesterday, 2 AM — quietYesterday, 5 AM — quietYesterday, 8 AM — quietYesterday, 11 AM — quietYesterday, 2 PM — quietYesterday, 5 PM — quietYesterday, 8 PM — quietYesterday, 11 PM — quietToday, 2 AM — quietToday, 5 AM — quiet 123
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  1. 3

    Research shows plants' water-use efficiency collapses after compound disturbances

    The study quantifies the damage: 54.6% of vegetated areas show increased precipitation sensitivity after compound drought-fire events, while water-use efficiency declines across most of those same areas. Hydrological drought-fire events drive the strongest response, with sensitivity increasing by 7.89×10⁻⁵ mm⁻¹ compared to 3.20×10⁻⁵ mm⁻¹ for meteorological drought-fire combinations.

    “This decoupling suggests that vegetation may be entering a fragile recovery state, where increased rain sensitivity does not translate into healthier carbon–water balance – a warning signa…”
    — Qunming Wang, Tongji University researcher · source
    • earthdotcom.bsky.social

      A global satellite study reveals how drought and wildfire together disrupt the relationship between rainfall, plant growth, and carbon absorption.

      earthdotcom.bsky.socialBluesky7d ago11▲view on Bluesky ↗
    2 posts in this stretch →
  2. 2

    Study finds compound drought-fire events decouple carbon and water efficiency

    Huipeng Xi and Qunming Wang's analysis of satellite data from 2001 to 2022 identifies 72,088 meteorological and 108,373 hydrological compound drought-fire events globally. The research reveals that vegetation hit by these compound events becomes markedly more sensitive to rainfall while simultaneously losing efficiency at converting water into carbon gain—a decoupling that signals ecosystem fragility.

    “Our findings reveal a critical vulnerability: after compound drought–fire events, ecosystems become more dependent on rainfall but less efficient at converting water into carbon gain.”
    — Qunming Wang
  3. 2 days quiet
  4. 1

    Global satellite study documents drought and wildfire impacts on ecosystem resilience

    Research emerging from Tongji University in Shanghai analyzing global space observations reveals that fire and drought impair ecosystem resilience. The study examined satellite data to track how these compound disturbances affect vegetation function and carbon sequestration.

    1. 1 outlet Global Space Observations Show Fire and Drought Impair Ecosystem Resilience

      first by AZoCleantech, 11d ago

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