2. CONTENT
Definition of Climate Change
Causes of Climate Change-
Natural Causes & Human Causes
Effects of Climate Change
3. DEFINITION OF CLIMATE CHANGE
“ It is a change which is attributed
directly or indirectly to human activity
that alters the composition of the
global atmosphere and which is in
addition to natural climate variability
observed over comparative time
periods”
24. CARBON DIOXIDE ACIDIFIES SEAWATER
CO2 and carbonate (which plankton use to make
shells) combine in the ocean.
The ocean is already more acidic than it was 50
years ago.
Source: Alfred-Wegener-Institute
CO2 CO2
Ocean
Atmosphere
“shelled-critters”