1. Climate change
WORLD AT RISK

2. What is climate change? What is Climate?
Climate = the average and variations of weather over a long period of time (~30 years)

3. What is climate change? What is Weather?
Weather = all natural phenomena within the atmosphere at a given time (hours to days)

4. Modern Climate Systems
Atmospheric circulation
Sunlight

5. Modern Climate Systems
Ocean circulation
Sinking cool water, rising warm water and wind help to form global ocean current systems.
The Great Ocean Conveyor
(Thermohaline Circulation)

6. Modern Climate Systems
Atmosphere and Greenhouse Effect
The Earth’s atmosphere is incredibly important to life
The Earth’s atmosphere keeps it around 30°C warmer than it would otherwise be.
This is the Greenhouse Effect

7. The Greenhouse Effect is a natural process
The ENHANCED Greenhouse Effect includes the effects of man

8. What is climate change?
on-global-warming

9. What is climate change?
The changing climatic environment today is a major cause for concern and is now the greatest environmental challenge facing the world today.
The earth’s climate system is the balance between the amount of energy the Earth receives from the Sun and the amount of energy the Earth releases back to space.
The increasing unnatural accumulation of greenhouse gases in the atmosphere is now causing global climate change.

10. Could it all just be natural?