Fossil pollen records are well-established indicators of past vegetation changes. The
prevalence of pollen across environmental settings including lakes, wetlands, and marine …

2 Chapter 2 assesses observed large-scale changes in climate system drivers, key climate
indicators and 3 principal modes of variability. Chapter 3 considers model performance and …

Vegetation shifts in circum-Arctic permafrost peatlands drive feedbacks with important
consequences for peatland carbon budgets and the extent of permafrost thaw under …

The ongoing 22‐year drought in the Upper Colorado River Basin (UCRB) has been
extremely severe, even in the context of the longest available tree‐ring reconstruction of …

The long-term relationship between temperature and hydroclimate has remained uncertain
due to the short length of instrumental measurements and inconsistent results from climate …

Sediment in lakes and meadows forms a powerful archive that can be used to reconstruct
environmental change through time. Reconstructions of lake level, of chemical, biological …

Holocene climate reconstructions are useful for understanding the diverse features and
spatial heterogeneity of past and future climate change. Here we present a database of …

This paper evaluates the relative importance of anthropogeomorphic sedimentation on
floodplains in the mid-latitudes of North America before and after the arrival of …

The current state of permafrost in Alaska and meaningful expectations for its future evolution
are informed by long-term perspectives on previous permafrost degradation. Thermokarst …

依据近年发表的新成果, 对中国过去千年干湿的年至百年尺度变化特征进行了总结梳理与对比
分析, 综合评估了20 世纪干湿变幅的历史地位. 主要结论是: ① 根据历史文献记载重建的东中部 …