Most people has a good relationship with forests and the uncontrolled logging around the world is taking its toll on both the wildlife, but also the climate. It stand to reason that letting the forests grow and claim land should be unconditionally positive for the planet, but as often it is not so simple. Priscilla Mooney, a researcher at NORCE and the Bjerknes centre, talks to our host Stephen Outten and co-host and producer Ingjald Pilskog about the consequences of both the destruction of the forests and the unexpected costs of letting the forests claim the higher latitudes and planting new forests without a proper understanding of the effects.

Bjerknessenteret

The climate cost of planting trees

Parisavtalen vart vedteken under FNs klimatoppmøte i desember 2015, etter mange års arbeid for gjennomslag for internasjonal klimahandling. I den står det at me skal etterstrebe å halde temperaturauken til under to grader. Kvar er vi no, fem år etterpå? Vi skal ikkje ein gong seie orda «2020 har vore eit spesielt år», sagt uttallege gongar sidan mars, og især no i slutten av desember gjenteke i årskavalkadar. For klimaet sin del har det likevel vore første året ein reduksjon i utslepp av CO2 sidan vi byrja å måle utslepp – sjølvsagt av grunnar vi helst skulle ha latt vere å ha gjennomført. Tore Furevik, direktør ved Bjerknessenteret, som var i Paris i desember 2015, oppsummerar dei siste fem åras utvikling – både for politikken generelt, og for seg personleg, ei utvikling han meiner har endra han frå pessimist til optimist. Du har no lytta til ein podcast frå Bjerknessenteret for klimaforsking. Bjerknessenteret er eit partnerskap mellom Universitetet i Bergen, Norwegian Research Centre NORCE, Nansensenteret og Havforskningsinstituttet. Musikken er Arcade Montage av Lee Rosevere under Creative Commons-lisens by-3.0. Podcasten er produsert av meg, Andreas Hadsel Opsvik, ved Bjerknessenteret for klimaforsking.

Parisavtalen 5 år etter – med direktør Tore Furevik

The great ice-sheets in Antarctica and Greenland holds many mysteries. David Chandler, a postdoctoral fellow at the Bjerknes Centre and NORCE, are trying together with his colleagues to unravel these mysteries. In this episode David Chandler takes Stephen Outten and Ingjald Pilskog to the Antarctica where we are discussing how global warming are melting the ice-sheet, in some places irreversibly, leading to sea level rise and life altering climate changes to people all over the globe. David Chandler is a postdoctoral fellow at NORCE and Bjerknes Centre for Climate Research. Stephen Outten is a researcher at Nansen Environmental and Remote Sensing Center and Bjerknes Centre for Climate Research. Ingjald Pilskog is an associated professor at Western Norway University of Applied Sciences and connected to the Bjerknes Centre for Climate Research.

Are we melting Antarctica irreversibly?

Gratulerer med dagen, Fridtjof Nansen! 10. oktober 2020 ville han ha vært 159 år, og vi holder virket hans i live gjennom samarbeidet i Arven etter Nansen.Forsker ved Universitetet i Bergen og Bjerknessenteret Marius snakker om inspirasjonen fra Nansens arbeid og vitenskap, grunnlaget han la for klimavarsling, og forskerrollen da og nå. Klimavarsling – en arv etter Nansen Oppvarming på 4°C i løpet av de siste 50 årene på Svalbard Hvordan kan vi bruke Fridtjof Nansens forskning i dag? 

Arven etter Nansen – med forskar Marius Årthun

Heatwaves are the extreme weather events that kills the most worldwide together with its close cousin the long-term draught. Peer-reviewed analysis places the European death toll at more than 70,000, in the 2003 European heatwave alone [1]. This was in developed countries with the resources to mitigate the worst consequences. It lasted one month which makes this event as mortal as the ongoing pandemic.The WHO defines heatwaves as more than three days with temperatures above 25 degrees C. This is when conditions start to get dangerous to humans. Other definitions are linked to higher temperatures than the normal temperatures – but what happens when the normal temperatures rise? Will there be less heatwaves?Igor Ezau dicuss with Stephen outten and Ingjald Pilskog in this new episode “Heatwaves, the weather that can kill thousands in developed countries”. [1] Robine, Jean-Marie; Cheung, Siu Lan K.; Le Roy, Sophie; Van Oyen, Herman; Griffiths, Clare; Michel, Jean-Pierre; Herrmann, François Richard (2008). "Solongo". Comptes Rendus Biologies. 331 (2): 171–178. doi:10.1016/j.crvi.2007.12.001. ISSN 1631-0691. PMID 18241810

Igor Ezau - Heatwaves, the weather that can kill thousands in developed countries

Is warm weather to Europe, North America's greatest export? Listen to the science conversation between Tim Woollings, Associate Professor at the University of Oxford, and Stephen Outten and Ingjald Pilskog podcast hosts and researchers at the Bjerknes Centre. Dr. Tim Woollings, has been visiting researcher at the Bjerknes Centre for Climate Research the last months. He is an expert in jet streams and large scale atmospheric dynamics.  The scientists discuss how the jet stream causes heat waves and cold periods, how the jet stream is affected by a changing climate and how the tropics and the Arctic pushes the jet northwards and southwards. Fasten your seatbelts and join a trip with the jet stream around the globe, southwards along the Rocky Mountains and free and variable northeast bound across the North Atlantic. Warning: This episode contains meteorological terms - be ware of terms like Rossby waves, eddy-driven jet, blocking and polar front!

North America's greatest export: Warm weather to Europe

Today, we’re giving you a three-course meal, through the writings of Scisnack. SciSnack is a group led by scientists at the University of Bergen, with the objective of improving writing skills of young and early career scientists around the world. You can read all these and more at SciSnack.com. How can evaporation of rain calm down the weather? – Kristine Flacké Haualand, 2019 Terrain and climate models – Marie Pontoppidan, 2017 Surfing atmospheric waves – the Morning Glory phenomenon – Kristine Flacké Haualand, 2016 

SciSnack stories – articles from our young and early career scientists

Harald Sodemann is working on improving the weather models. One thing he and his colleagues think can be improved is how water in the atmosphere is treated, to understand where it is coming from. To do this they need observations, and to get these observations, they ask skiers in the Norwegian mountains to take snow samples. For where better to gather samples of precipitation than the rainy Norwegian mountains. And who better to gather these samples, than skiers that prefer to go where no other people would think about going.  

Citizen scientists help bringing water to the weather models

«Det var eit liv før hockeykurven også», seier Øyvind Paasche, seniorforsker og seniorrådgiver ved NORCE og Bjerknessenteret. Hockeykurven, Hockey stick graph, Hockeykøllegrafen, – kjært barn har mange namn. Namneopphavet er openbart om du ser på den, ei temperaturlinje gjennom dei siste 600 åra som først går svakt nedover før den får ein knekk oppover på 1900-talet – som gjer at den ser ut som skaftet og bladet på ei hockeykølle. Den dukka opp i 1998 i tidsskriftet Nature, og fekk stor betydning for klimaforskinga som felt. Men korleis var det før den kom, kva hendte då den dukka opp, og kva betydning har den fått seinare? Øyvind Paasche tek oss med på gjennom hockeykøllegrafens historie – ei reise han sjølv har teke del i. Episoden er produsert av Andreas Hadsel Opsvik. Musikken er Lee Rosevere - Arcade montage, gjennom Creative Commons by-3.0. Dei to artiklane nemnd i episoden: Global-scale temperature patterns and climate forcing over the past six centuries, Michael E. Mann et al.: https://www.nature.com/articles/33859 Planetary Boundaries: Exploring the Safe Operating Space for Humanity, Johan Rockström et al.: https://www.ecologyandsociety.org/vol14/iss2/art32/ 

Før og etter hockeykøllegrafen – med Øyvind Paasche

Professor Camille Li works on storm tracks, the warm, moist conveyor belt that deliver storm after storm to us here in Western Norway and the British isles. Learn how these storm tracks works, how they will change and the research Camille Li and her colleagues are conducting at the Bjerknes centre for climate research. Our host, the NERSC researcher Stephen Outten and editor and associate professor Ingjald Pilskog, talk with Camille Li about why we are getting wet here in northwestern Europe.

Storm tracks – A conveyor belt of warm moist air

Einar Örn Ólason is working on sea ice forecasting and improving how sea ice is modelled in the future generations of earth system models. Learn how we will improve our predictions of what is going on in the high north and how this gives us a better understanding of our future. Learn about neXtSIM the future of sea ice prediction. Our host, the NERSC researcher Stephen Outten and editor and associate professor Ingjald Pilskog, talk with Einar Ólason about a model that means more for you then you know.

neXtSIM - The next generation of ice forecast

Weather models are made primarily for making good weather forecasts in the mid-latitudes, i.e. Europe and north America. They are also made to be able to calculate forecasts fast enough to be helpful on computers that are not as fast as the current computers. Therefore we have used a lot of short cuts that are not physical. PhDs as Marvin Kähnert are working on improving the models in the Arctic and introduce more physical correct assumptions. Our host the NERSC researcher Stephen Outten and editor and associate professor Ingjald Pilskog talk with Kähnert about the problem and what is done to fix it. Music by Lee Rosevere - Arcade montage, B.Y. 3.0.

Improving weather prediction in the Arctic

Nadine Steiger var i vår med på Kronprins Haakon til Antarktis. Norges nye isbryter var der nede for å studere isen og livet rundt i havet. Elin Darelius er en av våre fremste forskere på Antarktis og isen der. I denne episoden får du høre hvorfor vi reiser til andre siden av jorden for å forske på is. Våre programledere Ellen Viste og Ingjald Pilskog leder samtalen. Episoden er tatt opp hos UiB i Media City Bergen. Den er redigert av Ingjald Pilskog, førsteamanuensis i naturfag ved lærerutdanningen ved Høgskulen på Vestlandet og formidler ved Bjerknessenteret for klimaforskning. Musikken er av Lee Rosevere - Arcade Montage. Creative commons lisens B.Y. 3.0

Kronprinsen på tokt til Antarktis

Our host, Stephen Outten interviews Stefan Sobolowski researcher at Norce Climate and the Bjerknes Centre about how downscaled climate models can help us predict future extreme events. Host: Stephen Outten, researcher at Nansen Environmental and Remote Sensing Center and the research group for Climate Dynamics and Prediction. Present in the studio and responsible for recording and editing, Ingjald Pilskog, associated professor at Western Norway University of Applied Sciences.

How to predict extreme events with Stefan Sobolowski

Helene Langehaug, researcher at the Nansen Environmental and Remote Sensing Center and the research group for Climate Dynamics and Prediction are interviewed by her colleague, Stephen Outten, our new host for the English speaking audience. The topic for today is climate prediction and the push for going beyond projections and start predicting how the future climate will be. Host: Stephen Outten, researcher at Nansen Environmental and Remote Sensing Center and the research group for Climate Dynamics and Prediction. Present in the studio and responsible for recording and editing, Ingjald Pilskog, associated professor at Western Norway University of Applied Sciences.  

The push for predicting the future climate

Podcast of the Bjerknes Centre for Climate Research. Panel discussions, lectures and talks with world-class scientists.

hubhopper

Bjerknessenteret

hubhopper