Domino-Effect of Climate Events Could Move Earth Into a ‘Hothouse’ State!


Domino-Effect of Climate Events Could Move Earth  Into a ‘Hothouse’ State!

A domino like cascade of melting ice, warming seas, shifting currents and dying forests could tilt the Earth into a “hothouse” state beyond which human efforts to reduce emissions will be increasingly futile, a group of leading climate scientists have warned.

This grim prospect is sketched out in a journal paper that considers the combined consequences of 10 climate change processes, including the release of methane trapped in Siberian permafrost and the impact of melting ice in Greenland on the Antarctic.

The authors of the essay, published in proceedings of the national academy of sciences, stress their analysis is not conclusive, but warn the Paris Agreement to keep warming at 2C above pre-industrial levels may not be enough to “park” the planet’s climate at a stable temperature.
They warn that the hothouse trajectory “would almost certainly flood deltaic environments, increase the risk of damage from coastal storms and eliminate coral reefs by the end of this century or earlier”.

Their new paper asks whether the planet’s temperature can stabilise at 2C or whether it will gravitate towards a more extreme state. The authors attempt to assess whether warming can be halted or whether it will tip towards a “hothouse” world that is 4C warmer than pre-industrial times and far less supportive of human life.

Katherine Richardson from the University of Copenhagen, one of the authors said the paper showed that climate action was not just a case of turning the knob on emissions but of understanding how various factors interact at a global level.

“We note that the Earth has never in its history had a quasi-stable that is around 2C warmer than the preindustrial and suggest that there is a substantial risk that the system itself will “want” to continue warming because of all of these other processes – even if we stop emissions”

Currently, global average temperatures are just over 1C above pre-industrial levels and rising at 0.17C per decade. The Paris climate agreement set actions to keep warming limited to 1.5C-2C by the end of the century, but the authors warn more drastic action may be necessary.

The heatwave we now have in Europe is not something that was expected with just 1C of warming. In the context of this summer, this is definitely not a case of crying wolf, Dr Phil Williamson a climate researcher at the University of East Anglia said “People argue that we need to be much more proactive in that regard, not just ending greenhouse gas emissions as rapidly as possible but also building resilience in the context of complex Earth system processes that we might not fully understand until it’s too late”

A domino like cascade of melting ice, warming seas, shifting currents and dying forests could tilt the Earth into a “hothouse” state beyond which human efforts to reduce emissions will be increasingly futile, a group of leading climate scientists have warned.

This grim prospect is sketched out in a journal paper that considers the combined consequences of 10 climate change processes, including the release of methane trapped in Siberian permafrost and the impact of melting ice in Greenland on the Antarctic.

The authors of the essay, published in proceedings of the national academy of sciences, stress their analysis is not conclusive, but warn the Paris Agreement to keep warming at 2C above pre-industrial levels may not be enough to “park” the planet’s climate at a stable temperature.
They warn that the hothouse trajectory “would almost certainly flood deltaic environments, increase the risk of damage from coastal storms and eliminate coral reefs by the end of this century or earlier”.

Their new paper asks whether the planet’s temperature can stabilise at 2C or whether it will gravitate towards a more extreme state. The authors attempt to assess whether warming can be halted or whether it will tip towards a “hothouse” world that is 4C warmer than pre-industrial times and far less supportive of human life.

Katherine Richardson from the University of Copenhagen, one of the authors said the paper showed that climate action was not just a case of turning the knob on emissions but of understanding how various factors interact at a global level.

“We note that the Earth has never in its history had a quasi-stable that is around 2C warmer than the preindustrial and suggest that there is a substantial risk that the system itself will “want” to continue warming because of all of these other processes – even if we stop emissions”

Currently, global average temperatures are just over 1C above pre-industrial levels and rising at 0.17C per decade. The Paris climate agreement set actions to keep warming limited to 1.5C-2C by the end of the century, but the authors warn more drastic action may be necessary.

The heatwave we now have in Europe is not something that was expected with just 1C of warming. In the context of this summer, this is definitely not a case of crying wolf, Dr Phil Williamson a climate researcher at the University of East Anglia said “People argue that we need to be much more proactive in that regard, not just ending greenhouse gas emissions as rapidly as possible but also building resilience in the context of complex Earth system processes that we might not fully understand until it’s too late”

Other News


  • Meet Josh Coomber, a plumbing engineer at Ecolution Group for almost 7 years

    A WORKING DAY IN THE LIFE OF AN…

    07 March 2019

    Read more
  • #JoinTheEcolution at Homes 2018

    22 October 2018

    Read more
Top