的北极海冰观测符合政府间气候变化专门委员会说,他们应该是什么?和冰减少在一个指数或线性方式?
例如https://www.scientificamerican.com/article/how-the-ipcc-underestimated-climate-change/
http://neven1.typepad.com/blog/2011/04/trends-in-arctic-sea-ice-volume.html
https://nsidc.org/arcticseaicenews/2017/01/low-sea-ice-extent-continues-in-both-poles/
