澳大利亚Adelaide大学采矿地质学教授Ian Plimer，最近出版了一本书《天与地》，质疑气候变化是否由人为造成。
Ian Plimer, professor of mining geology at Adelaide University and author of a recent book Heaven and Earth, has controversially questioned whether climate change is man made.
工业规模采矿、建水坝、砍伐和农业，以及大气中的碳浓度上升和海洋中的氮浓度增高都是明显的地质学标记。
The geological signal will be clear from industrial-scale mining, damming, deforestation and agriculture, as well as the concentration of carbon in the atmosphere and nitrates in the oceans.
在矿业学校的早期阶段，同样的老师讲授采矿和冶金学科，有时还要讲地质学和矿物学。
In the early years of the schools of mines, teaching of mining and metallurgy, and sometimes geology and mineralogy were taught by the same professor.
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