全球变暖英文演讲幻灯片
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环保全球变暖英文PPT
Environmental reporting
Sustainable business practices
Partners for climate action
Corporations are increasingly required to report on their environmental impact, including greenhouse gas emissions, water use, and waste generation
02 Environmental protection measures
Energy conservation and emission reduction
Reduce energy consumption
Improve energy efficiency in buildings, transportation, and industrial processes
National policies and regulations
Carbon taxes
Many countries have implemented carbon taxes, which charge a fee for greenhouse gas emissions, to resource businesses and individuals to reduce their emissions
Enhance the reduction of waste by designing products to be more durable and recyclable
Implement extended product responsibility
全球变暖英文PPT幻灯片
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Solution
Low carbon life
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•Mitigation
•Adaptation
Mitigation of climate reduce greenhouse gas emissions, or enhance the capacity of carbon sinks to absorb GHGs from the
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The average global temperature rises significantly after entering the eighties
Global warming is coming !!!!
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2
ReБайду номын сангаасson
There are many reasons of the global warming, but it mainly caused by human activities
Population growth
CO2 land-use change
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Aerosols and soot
In addition to their direct effect by scattering and absorbing solar radiation, aerosols have indirect
effects on the Earth's radiation budget.
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Solar activity
The sun ’activities cause volcanic eruption , and produce a large number of ash
全球变暖——英语演讲PPT
The temperature rise 3℃
After three degrees Celsius rise in temperature , Europe will continue to suffer in the hot weather, tens of millions or billions of refugees from sub-tropical（亚热带） to move to midlatitudes（中纬度）.
The tempeature rise 5℃
After five degrees Celsius rise in temperature ， the areas not suitable forБайду номын сангаасliving are expanding ， the supply（供给） of water in some big cities of snow and aquifers dry up phenomenon, millions of people become climate refugees（气 候灾民）
The temperature rise 4℃
After four degrees Celsius rise in temperature , sealevel rise and flood (淹没) coastal cities; glaciers disappear, causing serious water shortages in many areas; And,London summer temperatures as high as 45 degrees Celsius.
Green in where?
measures
climate change 全球变暖37页PPT
• Since the TAR, progress in understanding how climate is changing in space and in time has been gained through improvements and extensions of numerous datasets and data analyses, broader geographical coverage, better understanding of uncertainties, and a wider variety of measurements.
Nitrous Oxide
• The global atmospheric nitrous oxide concentration increased from a pre-industrial value of about 270 ppb to 319 ppb in 2005.
Anthropogenic contributioቤተ መጻሕፍቲ ባይዱs
• The linear warming trend over the last 50 years (0.13 [0.10 to 0.16]°C per decade) is nearly twice that for the last 100 years.
2 Human and Natural Drivers of Climate Change
• The combined radiative forcing due to increases in carbon dioxide, methane, and nitrous oxide is +2.30[+2.07 to +2.53]wm-2.
Nitrous Oxide
• The global atmospheric nitrous oxide concentration increased from a pre-industrial value of about 270 ppb to 319 ppb in 2005.
Anthropogenic contributioቤተ መጻሕፍቲ ባይዱs
• The linear warming trend over the last 50 years (0.13 [0.10 to 0.16]°C per decade) is nearly twice that for the last 100 years.
2 Human and Natural Drivers of Climate Change
• The combined radiative forcing due to increases in carbon dioxide, methane, and nitrous oxide is +2.30[+2.07 to +2.53]wm-2.
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