环保全球变暖英文PPT.ppt

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DEFENCE
logo
The Reasons
The Situations
ti
Global Warming
The Actions
Outline
绪论
研究
方法
1
2
The Situations
Global Annual Average Temperature Run Chart
High Expected value
Low Expected value
Nearly 100 years
the average
global temperature
has increased.
(~℃)
In the future,
the earth will
become much
hotter.
The Situations
The Arctic Ice being seriously reduced
Facing Serious Long-term Drought
Suffering So Many Flood Disasters
01.
The Reasons
02.
Nature Cause
Human Cause
Nature Cause:
1
The earth is on a warm period
2
The earth revolution track has been changed
3
The Reasons
The Reasons
Human Cause:
Excessive
Development and
Usage of Fossil Fuels
for a Long Term
gas
Hydro and nuclear power
The Chart of Energy Source Structure from
1950 to 1990
The Reasons
Air Carbon Dioxide Enrichment
A Greenhouse Gas
The Greenhouse Effect
Heat Preservation
The Reasons
Much of the temperature
change is down to
human influence
ti
Nature Cause
ti
Human Cause
Low Carbon Technology
Low Carbon Life
The Actions