Sending Climate Alert
Name Lu Xueke
Permafrost is thawing
Arctic is degrading
N2O is slowly releasing
Rebuild the Tibetan Plateau railway?
Boomed bettles destroyed the forest in Alaska
It is never too late to take action
soil at or below the freezing point of water for 2 or more years
located in high latitudes
accounts for 0.022% of total water
exists in 24% of exposed land
in the Northern Hemisphere
Time taken for permafrost
to reach depth
time taken for permafrost to
Time (yr) Depth (m)
•Temperature have risen by up to 3°C in the past 50 years.
•Temperature will rise by a further 2 - 9°C this century.
•Animals are in danger.
Penguins lose habitat.
Polar bears kill each other
Sea lion is dying under the sun.
A new greenhouse gAses (n2o)
released by thawing permafrost in Greenland
298-times more powerful than CO2
rate of nitrous oxide is low
Arctic is in A Vicious cycle
emission of greenhouse gAses
In a pothole, buried air and gas
from bacteria and algae
bubbled to the surface,
where a midnight freeze trapped them.
Emission of CH4 from the ice
in North Canada.
Tibetan Plateau railway Foundation deformation
Will cost another 4,000,000,000 dollars?
Trains will aggravate the thawing
Dead spruce---victim of tiny beetles
1 million acres have succumbed to
the spruce bark beetle
dead trees release greenhouse gases
【 Astonishing Data 】
Green house gases covered an area of nearly 800,000 square miles
In 2009 summer season, only 10% of Arctic sea ice
was more than 2 years old
Arctic Ocean will become sea-ice free in 20 to 40 years.
About 1,000,000,000 tons of green house gases will emit.
【 Astonishing Data (cont.) 】
The methane density nowadays is the highest ever since the
The ice ratio of the permafrost is decreasing year to year.
But it is never too late to take action.
Comparison of sea ice age at the end of winter in February 2009 (right)
with the 1981-2000 average (left).
(a)Year-to-year changes of permafrost’s Ice ratio.
(b) soil temperature, in Layer10 for six analysis regions.
It Is nEvEr too
to takE actIonChina
1. lowering the relative use of energy by 14.4%
2. cut energy intensity 20% by the end of 2010
It Is never too
to take actIon
1. Stream water study detects thawing permafrost
2. a new IBM supercomputer installed by NCAR for
Improved Climate and Weather Research
Do you want our Arctic
Ocean to be like this?
1. Use less water
2. Walk more, drive less
3. Energy-efficient light bulbs
4. Eat less meat
5. Use recycle bags