(Fig. 1D, 3E) Sea surface temperature and alkenone C37:4 for sediment core MD...

Past glacials can be thought of as natural experiments in which variations in boundary conditions influenced the character of climate change. However, beyond the last glacial,...既往冰期（glacial）可被视作天然实验，其间边界条件的变化塑造了气候变化的特征。然而，除却末次冰期之外……