环保全球变暖英文.ppt

文档介绍：Outline
The Actions
3
The Reasons
2
The Situations
1
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Global Warming
第一页
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.
第二页
The Situations
The Arctic Ice being seriously reduced
Facing Serious Long-term Drought
Suffering So Many Flood Disasters
第三页
The Reasons
Nature Cause
Human Cause
第四页
The Reasons
Nature Cause:
The earth is on a warm period
The earth revolution track has been changed
第五页
The Reasons
Human Cause:
Excessive
Development and
Usage of Fossil Fuels
for a Long Term
petroleum
coal
gas
Hydro and nuclear power
The Chart of Energy Source Structure from
1950 to 1990
第六页
The Reasons
Air Carbon Dioxide Enrichment
A Greenhouse Gas
The Greenhouse Effect
Heat Preservation
第七页
The Reasons
Much of the temperature
change is down to
human influence
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Nature Cause
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Human Cause
第八页
The Actions
Low Carbon Technology
Low Carbon Life
第九页
The Actions
Low Carbon Technology
Less energy consumption for machines
Change energy source structure
第十页