在中国东北的长白山，有一种特别的树——椴树，它像一位隐居深山的智者，每年夏季绽放出淡雅的小花。这些花朵不仅吸引了无数蜜蜂忙碌采蜜，更孕育出了独一无二的椴树蜂蜜。In the Changbai Mountains of Northeast China, ...

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...