Within this general field, surveying changes in the volume and stability of the ice cap is vital,
在這項領域里,調查冰蓋的體積和穩定性是至關重要的,
since these may have profound effects on world sea levels and on ocean currents.
因為它們可能對世界范圍內的海平面和洋流產生深遠影響。
A second important area is monitoring the size of the hole in the ozone layer above Antarctica,
第二個重要的地方是檢查南極洲上空臭氧層空洞的大小,
since this is an indicator of global ultra violet radiation levels.
因為它標志著全球紫外線的輻射水平。
Thirdly, bubbles in the ice sheet itself provide an index of pollution because frozen inside them are samples of previous atmospheres over the past 500,000 years,
第三,冰架內的氣泡可以提供污染指數,因為它們是50萬年前凍在里面的空氣樣本,
and these provide us with evidence for the effects of such human activities as agriculture and industry.
并且為農業、工業這樣的人類活動所帶來的影響提供證據。
There are an increasing number of opportunities for young people to work for a period in Antarctica not only as research assistants in projects like mine,
南極洲有越來越多為年輕人提供階段性工作的機會,不僅是做像我的項目這樣的助理研究員,
but also in a wide range of junior administrative and technical positions including vacancies for map makers.
還有各種初級行政崗位和技術崗位,包括繪制地圖的工作。
I hope that the insights I 've provided will encourage you to take up these opportunities in this fascinating continent.
我希望我提供給你們的信息可以鼓勵你們抓住機會到這片迷人的大洲來。