Why is climate change a controversial issue?
Controversies concerning sciences
Global warming
Unproved and dismissed it
Exists but NO FONDS
Controversies concerning public
Poor understanding
Confusion between Global warming and Ozone depletion
Should we adapt to it or moderate it?
USA- Adaptation-only policy
DO adapt to inevitable changes
CHEAPER
DO NOT reduce gases to limit warming
EXPENSIVE
Controversies concerning politics
Wait for impacts
Adapt to them
CLIMATE CHANGE
Definition
The increase of the global average of air temperature
Causes
Human activity
Wholly? Partially?
Consequence
Global warming