PBL: Duidelijke consensus wetenschappers over klimaatverandering

AMSTERDAM – Er is bij wetenschappers een duidelijke consensus dat klimaatverandering door de mens veroorzaakt wordt.

IJskappen, Klimaatveranderinh, Dit blijkt uit een enquête van onder andere het Planbureau voor de Leefomgeving (PBL) die in 2012 werd gehouden onder 1.800 internationale wetenschappers.

Volgens de onderzoekers blijkt ook dat de wetenschappers die meer deskundig zijn of ervaring hebben, en die dus meer hebben gepubliceerd, ook meer overtuigd zijn van de invloed van de mens op klimaatverandering.

Ongeveer 90 procent van de respondenten die meer dan 10 ‘peer-reviewed’ publicaties op hun naam heeft staan op het gebied van klimaat  (ongeveer de helft van alle respondenten) is het erover eens dat door de mens veroorzaakte broeikasgassen de belangrijkste oorzaak zijn van de recente opwarming.

Eerdere overzichten

Dit komt overeen met eerdere overzichten die zijn gemaakt van de belangrijkste meningen in het vakgebied. Over het algemeen wordt aangehouden dat ongeveer 97 procent van alle gepubliceerde en door collega’s nagelezen papers concluderen dat de huidige opwarming van de aarde door de mens wordt veroorzaakt.

In het huidige rapport was 85 procent van alle geënquêteerde wetenschappers overtuigd van een door de mens veroorzaakte klimaatverandering.


Wetenschappers werd ook gevraagd hoeveel ze in de media komen. Het blijkt dat onderzoekers die de klimaatgevoeligheid voor Co2 laag inschatten, minder dan 1,75 graden per verdubbeling van de CO2 concentratie, meer in de media weten te komen.

Volgens de opstellers van dit rapport draagt dit waarschijnlijk bij “aan de kloof tussen de maatschappelijke en de wetenschappelijke discourse  over klimaatverandering”.

Het onderzoek van het PBL in samenwerking met andere instituten werd nu gepubliceerd in het wetenschappelijke journaal Environmental Science & Technology. Ongeveer 6.550 onderzoekers werd gevraagd een vragenlijst in te vullen.

Lees hier het hele onderzoek 

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