Only small villages are thinly scattered in this remote and inhospitable region of arctic tundra bordering the beaufort sea .
在北极苔原及博福特海相接的这片偏僻荒芜的地区里,只有零星几个小村落。
Frozen dog dirt stipples the tundra of the golf course .
冻成冰块的狗屎点缀着高尔夫球场的苔原。
The african savannahs have the lion , the jungles of asia the tiger and the arctic tundra the polar bear .
比如非洲大草原上的狮子,亚洲丛林里的老虎以及北极冻原上的北极熊。
This is the highest railway in the world crossing 803km of frozen tundra by the time the xigaze extension is completed in 2014 .
这是世界上最高的铁路,到2014年日喀则地区扩展铁路完工后将跨越803公里的冻原。
Then as now , people-free wilderness existed mostly in deserts and tundra .
所以到现在为止,人类没有涉足的地方主要是荒漠和苔原。
The doubts have sent researchers into forests and rangelands , out to the tundra and to sea , to track down and understand the missing carbon .
这种怀疑驱使研究人员到森林和牧场,以及更远点到冻原和大海,去追踪和了解这些失踪的碳。
2 There are more than 2500 varieties of mosquito ( some entomologists claim 3000 ) whining from the arctic tundra to the tropical rain forests .
从极地冻原到热带雨林活跃着2500不同种类的蚊子(有的昆虫学家认为有3000种)。
Human beings fill every ecological niche on the planet , from the icy tundra to the tropical rain forests to the deserts .
从冻土地带到热带雨林,再到沙漠,人类已填满了这个星球的每一个生态位。
Global warming heats up the arctic twice as fast as the rest of the world , meaning alaska 's beautiful northern tundra stands to vanish completely if temperatures continue to rise .
As the tundra 's permafrost melts , it not only drastically alters the ecosystem but also releases additional carbon , ironically hastening global warming .