Climate change


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Climate change

  1. 1. Understanding climate change For KSRM, Bhubaneswar
  2. 2. Climate change Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions, or in the distribution of weather around the average conditions (i.e., more or fewer extreme weather events). Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have also been identified as significant causes of recent climate change, often referred to as "global warming".
  3. 3. • Climate change is one of the greatest challenges of our time….and will affect, in profound adverse ways, some of the fundamental determinants of health, food, air and water – Dr. Margaret Chan, WHO 2008 • It has brought about severe and possibly permanent alterations to our planet’s geological, biological and ecological systems. • These changes have led to the emergence of large scale environmental hazards to human health, loss of bio-diversity, stresses to food producing systems and global spread of infectious diseases .
  4. 4. • Majority of the adverse effects of CC are experienced by poor and low-income communities around the world who have much higher levels of vulnerability to environmental determinants of health, wealth and other factors, and much lower levels of capacity available for coping with environmental change. • A report on global human impact of climate change published by Global Humanitarian forum in 2009 estimated more than 300,000 deaths and about $125 billion in economic losses each year, and indicating that most climate change induced mortality is due to worsening floods and droughts in developing countries
  5. 5. Climate Justice This raises the question of climate justice, since the 50 least developed countries of the world account for not more than 1% of the worldwide emissions of green house gases
  6. 6. • Greenhouse effect - The greenhouse effect is a term that describes how natural gases in the earth's atmosphere allow infrared radiation from the sun to warm the earth's surface, but they also prevent much of the heat escaping from the earth's atmosphere. Human actions are increasing the concentrations of these gases, which is contributing to global climate change. • Adaptation - In order to adapt to the effects of climate change actions must be undertaken to help communities adjust, through behaviour change, design and delivery of services and planning and infrastructure. Action must also be taken to protect our natural assets and ecosystems.
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