Postdoctoral Fellow @FIIA; Visiting Researcher @Uni Helsinki | A professional pessimist into crisis management; environmental security; critical minerals, fertiliser, and pharmaceutical supply chains; pandemic preparedness; AMOC collapse
Helmi Räisänen
New metaphor just dropped
Heard of "multiple breadbasket failures" - simultaneous crop failures across major agricultural regions?
A recent paper shows that unprecedented global droughts don't require record-breaking droughts everywhere.
Systemic risk can emerge from combinations of moderate shocks.
The study shows that global record shattering droughts across major maize producing regions become more likely this century and typically arising from concurrent moderately extreme droughts rather tha...
It's crazy how reliant the world's entire energy system is on one body of water, the Strait of Hormuz, just 20 nautical miles across at its narrowest, and situated in one of the most volatile regions on Earth. Here are the countries most dependent on oil&gas through the strait.
Read our opinion piece on AMOC! Now!
Itâs not the average outcome of global warming we should fear.
Itâs the extremes already possible under âmoderateâ warming.
New study: even ~2 °C warming can produce climate impacts as severe as average projections at 3â4 °C.
www.nature.com/articles/s41...
âWe found that the Amoc is going to decline more than expected compared to the average of all climate models. This means we have an Amoc that is closer to a tipping point.â - Dr Valentin Portmann
www.theguardian.com/environment/...
Saatiin Ilmatieteen laitoksen johdolla lisää rahaa AMOCin tutkimiseen! đ The Government is funding our research project on the AMOC, led by the Finnish Meteorological Institute!
valtioneuvosto.fi/-/1410903/su...
Helmi Räisänen
Helmi Räisänen
Extreme global climate outcomes may occur even under moderate 2â°C warming and may turn out to be more extreme than model-averaged projections at 3â°C or 4â°C warming.
www.nature.com
Scientists say finding is âvery concerningâ as collapse would be catastrophic for Europe, Africa and the Americas
Ilmatieteen laitoksen vetämä tutkimus tuottaa ensimmäistä kertaa kuvauksen Atlantin valtameren kiertoliikkeen (AMOC) heikkenemisen vaikutuksista Suomeen. Valtioneuvoston rahoittama HIIPUVA-hanke vahvi...
Been seeing a lot of such graphs in recent years đŹ
#BraveNewWorld
In a new PLOS Climate Opinion piece that draws on a recent report sponsored by @nordenorg.bsky.social, Aleksi Nummelin & colleagues outline key actions that societies should take to prepare for a potential crossing of an #AMOC tipping point.
đ Read the article: journals.plos.org/climate/arti...
