Ecological doom-loops: Why ecosystem collapses may occur much sooner than expected
phys.org
Around the world, rainforests are becoming savanna or farmland, savanna is drying out and turning into desert, and icy tundra is thawing. Indeed, scientific studies have now recorded "regime shifts" like these in more than 20 different types of ecosystem where tipping points have been passed. Around the world, more than 20% of ecosystems are in danger of shifting or collapsing into something different.

an ecosystem predicted to collapse in the 2090s owing to the creeping rise of a single source of stress, such as global temperatures, could, in a worst-case scenario, collapse in the 2030s once we factor in other issues like extreme rainfall, pollution, or a sudden spike in natural resource use.

There is no way to restore collapsed ecosystems within any reasonable timeframe. There are no ecological bailouts. In the financial vernacular, we will just have to take the hit.

Paper

  • Nix@lemmy.world
    1·
    1 year ago

    Thus, our human brain are incapable of grasping or begin to comprehend the scale and severity of the climate crisis with just soundbites, anecdotes, news-rants and tiktok videos.

    Understanding complex systems is hard and requires continuous concentration over months and years. Even more so for the Hyperobject that is ephemerally understood as Climate Change.

    We can barely begin to collectively acknowledge that perhaps something is indeed wrong with :

    • all the burning forests just because of the smoke/smog “inconveniently” smothers our cities (occasionally burning them for being too close)
    • atmospheric rivers drowning towns and cities in flash floods
    • high altitude glaciers irreversibly melting and disappearing
    • Greenland and Antarctic have only accelerated their ice loss from sustained glacier retreat
    • the thermohaline circulation slowing down due to all that melted water (less dense due to higher temperature and less salt) staying on the surface of the water column
    • the migration of millions of humans mostly from regions with latitude between the Tropic of Cancer and Tropic of Capricorn due to drought, crops loss, famine, extreme storms, natural disasters and violence or wars
    • the increase in frequency and length of heatwaves

    Unfortunately, we will probably sooner or later go to war over made-up fantasies or leftovers of a ruined planet before finally collectively understanding and tackling the complex thing that is currently (for now) known as Climate Change.