Early studies on the evolution of glaciers argue that the warm Early Holocene transitioned into a Late-Holocene Neoglacial, with numerous glacial advances due to decreasing solar forcing in the boreal summer. The assumption of decreasing temperatures based on the glacier studies was supported by several proxy-based reconstructions as well as by simulations. Under the keyword “Holocene temperature conundrum” this fact is questioned. In particular, it is argued that the proxy studies are biased on time series dominated by a seasonal bias in the form of predominant summer temperatures (mainly marine). After a presentation of the facts, the weaknesses of both hypotheses (cooler or warmer) are briefly presented.

关于冰川演化的早期研究认为，温暖的早期全新世转变为晚全新世新冰期，由于北方夏季太阳强迫减少，冰川发生了多次进展。基于冰川研究的温度降低假设得到了几个基于代理的重建以及模拟的支持。在关键字“全新世温度难题”下，这一事实受到质疑。特别是，有人认为代理研究偏向于以夏季主要温度（主要是海洋）形式的季节性偏差为主的时间序列。在介绍了事实之后，简要介绍了两种假设（较冷或较暖）的弱点。